109 results about "P-hydroxybenzoate" patented technology

The invention discloses a preparation method of a machine-made water-soluble polyvinyl alcohol nonwoven shopping bag. The preparation method specifically comprises the following steps: (1) preparing asizing finishing agent, wherein the sizing finishing agent comprises the following raw material components in parts by weight: 10-20 parts of polyvinyl alcohol, 3-8 parts of polyol copolymer polyether, 1-3 parts of polyacrylamide hydrolysate, 2-5 parts of polyhydric alcohols, 1-3 parts of an inorganic filler, 1-3 parts of urea, 0.1-0.3 part of a wetting agent, 0.2-0.5 part of imidazolidinyl urea,0.1-0.3 part of p-hydroxybenzoate and 100 parts of water, and mixing the various components to prepare the sizing finishing agent; (2) applying the sizing finishing agent to padding finishing and coating finishing processes of polyvinyl alcohol nonwovens; and (3) performing mechanized automatic hot-seal bag making on the polyvinyl alcohol nonwovens subjected to padding or coating sizing, therebyobtaining the shopping bag. The shopping bag provided by the invention has excellent heat sealability and mechanical property and good hand feeling. According to the method, the processing efficiencyis improved, and the production cost is reduced.

Disclosed is a method for recoverying and treating phenol and p-hydroxybenzoate in p-hydroxybenzoate process wastewater, comprising: extracting the p-hydroxybenzoate process wastewater by an extractant, at the same time, recoverying phenol and p-hydroxybenzoate in the wastewater; the extractant is trioctylamine, tri-butyl-phosphate, xylene or n-octanol, or two or more mixtures selected therefrom; the extraction liquid is antiextracted by alkali matter solution, wherein the alkali matter is selected from: potassium hydroxide, sodium hydroxide or ammonia hydroxide; the antiextraction liquid is back to the production process to perform carboxylation. A preferable scheme is two-step refluence extraction; second extraction is performed on the extraction remaining aqueous phase, which is performed with first extraction, by a regeneration extractant after first extraction; the second extraction liquid is back to the first extraction step, and the original wastewater is performed with first extraction. The invention has obvious economical and environmental benefit, the recovery rate of phenol and p-hydroxybenzoate in the wastewater is about 100%, and the COD removing rate is 98.9%.

A process for preparing the 4,4'-bihydroxybiphenyl methaneone includes mixing phenyl p-hydroxybenzoate with catalyst in organic solvent, heating while stirring, reaction, separating the resultant and recrystallizing.

The invention discloses a preparation method and an application of a polyvinyl alcohol nonwoven fabric finishing agent. The finishing agent comprises, by weight, 10-20 parts of polyvinyl alcohol, 3-8parts of hydroxypropyl cellulose (HPC), 5-20 parts of amide modified polyol, 3-15 parts of alkyl glycosides, 5-10 parts of an inorganic filler, 1-5 parts of hydroxyethyl urea, 0.3-1.0 part of a penetrant, 0.3-1.0 part of imidazolidinyl urea, 0.1-0.3 part of p-hydroxybenzoate and 100 parts of water. The raw materials are mixed and heated to obtain the finishing agent. The finishing agent is suitable for the processes of padding finishing, sizing finishing, coating finishing and the like of a polyvinyl alcohol nonwoven fabric; and the polyvinyl alcohol nonwoven fabric is dipped in or coated withthe finishing agent, and then is dried, set and embossed. The nonwoven fabric finished with the finishing agent has improved heat-sealing performance and enhanced mechanical properties, so the hand feeling of the finished nonwoven fabric is also improved.

The invention which relates to a PTFE friction material with high bearing and a low friction coefficient and a manufacturing process thereof belongs to the field of materials with high bearing and low friction coefficients and manufacturing processes thereof. The PTFE friction material which mainly comprises components of PTFE, poly-p-hydroxybenzoate, expanded graphite, a basalt fiber, a silane or titanate coupling agent and the like is manufactured by adopting a mixing technology of ultrasonic vibration-swirling and the manufacturing process of vacuum cold press sintering or vacuum hot pressing molding. The mechanical strength of the PTFE composite material is obviously increased, the friction coefficient of the PTFE composite material is reduced, and the PTFE composite material which has obvious progresses in aspects of tensile strength, ball indentation hardness, wear resistance and the like allows application demands of harsh industrial fields and transport fields of railway freight car bogies, slide slewing bearings and the like to be satisfied. The PTFE friction material of the invention has the advantages of low friction coefficient, and good bearing performance and corrosion resistance, and the manufacturing process of the PTFE friction material has the advantages of simplicity, low cost, and wide practicality.

A method for detecting food additives in moon cakes, comprising the following steps: (1) preparing a mixed standard solution: mixing and preparing dehydroacetic acid, benzoic acid, sorbic acid, and four kinds of p-hydroxybenzoic acid lipid standard products in pure methanol; Acesulfame K, sodium saccharin, and 8 food coloring standards were mixed and prepared in pure water; then the above solutions were mixed in proportion to obtain a mixed standard stock solution; (2) sample extraction; (3) sample purification; (4) on Machine detection: the liquid to be tested and the mixed standard solution are placed in a liquid chromatograph equipped with an ultraviolet detector for detection, and the external standard method is used for quantification. Through gradient elution and wavelength switching, the content of food additives is measured simultaneously on the machine. The invention has the same pretreatment steps, low cost, high speed, reliable results and good reproducibility, and can simultaneously detect 17 kinds of food additives at one time.

The invention provides a preparation method of mythyl p-hydroxybenzoate molecular imprinting composite membrane and application thereof. A molecular imprinting composite preparation method and an application of mythyl p hydroxybenzoate in separation of methyl salicylate belong to the fields of material preparation technology and separating technology. polyvinylidene fluoride micro filter membrane is used as a substrate, and mythyl p-hydroxybenzoate (MP) which is impurity in methyl salicylate is used as a template molecule, and methacrylic acid (MAA) is used as a functional monomer, and N, N'-methylene bisacrylamide (MPAA) is used as a cross-linking agent, and azodiisobutyronitrile (AIBN) is used as an initiator; preparation of mythyl p-hydroxybenzoate molecular blotting membrane (MIMMP), static adsorption experiment and selective penetration experiment are used for researching selective identification property of the preparative molecular imprinting membrane. The result shows that, according to the invention, the obtained mythyl p-hydroxybenzoate molecular imprinting composite membrane has super mythyl p-hydroxybenzoate molecule identification performance.

The invention discloses a low molecular weight polyether with a structure shown in formula (1) and its preparation method. In the formula, R1 and R2 are independently the alkyl of C1-C3 or H, R1 and R2 can be the same or different, m, n and p, q are integers from 0 to 100 respectively, m and n can be the same or different, p and q can be the same or different, and m and p, n and q are not 0 at the same time. According to the preparation method, firstly alkyloxyalkylene is employed to perform oxyalkylation on p-hydroxybenzoate, and then the obtained product and maleic anhydride undergo an esterification reaction, thus obtaining the low molecular weight water reducing agent. The low molecular weight water reducing agent can be directly used as a polycarboxylate water reducing agent, also can be compounded with other types of polycarboxylate water reducing agents, and also can be copolymerized with other alkene monomers to form high molecular weight polycarboxylate water reducing agents. The low molecular weight water reducing agent provided in the invention can reduce concrete slump loss, and weaken the adsorption of clay to a polycarboxylate water reducing agent.

The invention relates to a versatile disinfectant containing as main components, a metal ion having an antimicrobial action, L-cysteine and L-ascorbic acid, characterized in that it contains a surfactant excluding a nonionic surfactant in addition to these main components. The versatile disinfectant may further contain one or more compounds selected from the group consisting of sorbic acid, sorbates, benzoic acid, benzoates and p-hydroxybenzoate esters. The pH of the versatile disinfectant is preferably adjusted to 2.5 to 4.0. The disinfectant can disinfect an object to be treated for an environment, an apparatus, a human body, an animal body, a plant body, an organic matter or the like by bringing the disinfectant into contact with such an object to be treated.

The invention relates to a method for determining content of mythyl p-hydroxybenzoate and sodium benzoate in a solution. The method is characterized in that a high performance liquid chromatography is adopted, and chromatographic conditions are adaptive to a system: octadecyl bonded silane is used as a filling agent and 1% acetonitrile-acetic acid is used as a mobile phase, wherein a volume ratio of a water phase to an organic phase is 72-70:28-30; a detection wavelength is 230 nm; a flow velocity is 0.6-1.0 ml per minute; a column temperature is 30+ / -5 DEG C; a number of theoretical plates is not smaller than 3,000 in terms of sodium benzoate; and a degree of separation is larger than 2.0. The method comprises the steps of precisely measuring a proper amount of a drug preparation solution; adding a mobile phase to dilute the solution into a test liquid with required concentration; shaking uniformly; injecting 10 [mu]L of the sample in a liquid chromatograph; recording a chromatogram; measuring methyl 4-hydroxybenzoate and sodium benzoate as reference substances; determining by using the same method; and calculating according to peak area by using an external standard method. With the method, quantitative analysis of methyl 4-hydroxybenzoate and sodium benzoate can be completed under the same chromatographic conditions; the determination method is simple and practicable; and the determined indexes are accurate.

The invention relates to the technical field of enzyme linked immune, and discloses a composition for an enzyme linked immunosorbent assay kit, an anti-nuclear antibody spectrum detection kit and a preparation method thereof. The composition comprises sealing liquid and ELISA diluents; the sealing liquid contains casein, saccharose, PBS, mannitol, Tween20, lycine and sodium azide; the ELISA diluents contain PBS, casein, sodium p-hydroxybenzoate, PEG, lycine and Proclin300. By starting from the sealing liquid and the ELISA diluents of the enzyme linked immunosorbent assay kit, the proper ingredients are selected, so that the enzyme linked immunosorbent assay kit can maintain the detection stability for a long time. Meanwhile, the anti-nuclear antibody spectrum detection kit prepared from the composition has higher stability; the guarantee period is 2 years or more.

The invention discloses a viscoelastic system formed by a functional Gemini surface active agent and belongs to the technical field of a surface active agent. According to a preparation method of a viscoelastic surface active agent solution provided by the invention, organic salt comprises sodium o-hydroxybenzoate, 3-hydroxy-benzoic aci monosodium salt and sodium p-Hydroxybenzoate; Gemini surface active agent with hydroxyl group is taken as the main component and is compounded with few organic salts, and then the viscoelastic surface active agent solution is obtained; the preparation of the viscoelastic surface active agent solution comprises the two processes of compounding and testing viscoelastic property; Gemini cationic surface active agent is prepared into the solution in certain concentration and then is compounded with the salt at different ratio, thus, the viscoelastic surface active agent solution is acquired.

The invention relates to a skin care emulsion with whitening and anti-wrinkling effect, comprising the following materials in parts by weight per 1000g: 1-4 parts of anthocyanin, 5-20 parts of collagen, 2.5-10 parts of arbutin, 1.5-6 parts of sodium hyaluronate, 8-12 parts of lauryl sodium sulfate, 1-6 parts of N- acetyl ethanolamine, 80-100 parts of octadecanol, 1-6 parts of methylnaphthalene sodium sulfonate, 45-55 parts of glycerol, 0.5-2 parts of p-hydroxybenzoate, 10-40 parts of ring polydimethylsiloxane, and the balance of distilled water. The skin care emulsion of the invention is used on face, and has the following effects of: (1) improving cellular micro ecological environment rapidly; (2) decreasing the accumulation of skin pigment, and dispelling trauma spots, sunburns, chloasmas, freckles and the like; (3) eliminating wrinkles, and improving the excessive cornification of skin to ensure that the skin is ruddy and glossy gradually; (4) stabilizing the nature during use without generating a phenomenon of allergy.

The invention relates to a method for preparing broad spectrum antihumanglobulin cards. Six micro-column gel tubes are arranged on the cards, and the six micro-column gel tubes are gel tubes containing an antibody for resisting IgG+C3d. The method comprises the following processes of preparation of a gel suspension medium, preparation of a gel, selection of the antibody, and preparation and sub-package of the gel. The gel suspension medium comprises the reagents of (5.5-6.5)*10-4g / ml methyl- p-hydroxybenzoate, (1.0-1.5)*10-4g / ml propyl p-hydroxybenzoate, (1.6-1.9)*10-2g / ml glycine, (1.7-1.9)*10-3g / ml sodium chloride, (2.1-2.4)*10-4g / ml monopotassium phosphate, (4.6-4.8)*10-4g / ml disodium hydrogen phosphate and less than or equal to 2 percent of bovine serum albumin. The reagents are dissolved by using distilled water; and the pH value is adjusted into 6.6-6.8. The broad spectrum antihumanglobulin cards prepared by the method have the advantages of high sensitivity, favorable specificity and stable quality.

The invention provides an activated carbon skin lotion which is fresh and cool in smell, strong in detergency, mild to skins and capable of taking a protecting effect. The activated carbon skin lotion comprises 10-16% of fatty acid, 18-28% of anionic surfactant, 0.01-1% of p-hydroxybenzoate, 12-22% of olefin sulfonate, 10-15% of cocamidopropyl betaine, 0.1-0.5% of citric acid, 1-3% of laurhydroxylsulfopropylamide betaine, 1-3% of distearic acid glycol ester, 3-5% of ultramicro activated carbon particles and the balance of deionized water. The main raw materials used in the formula are degradable raw materials and can be biologically degraded; and due to the adoption of the natural environment-friendly raw materials, the activated carbon skin lotion is approved by the European union and national professional institutes and passes the ecological and non-phosphorus detection. The activated carbon skin lotion is favorable in detergency as well as mild and safe in performance; and the blistering effect, the detergency and the skin heat preservation effect are improved. The skin lotion provided by the invention is strong in detergency and capable of taking a good skin protecting effect.

The invention discloses semi-artificial feed of red weevil, and a preparation method of the semi-artificial feed. The semi-artificial feed comprises the following components of Washington palm leaf stalk fiber powder, choline, mixed vitamin liquor, agar, cane sugar, casein, yeast powder, corn flour, inositol, vitamin C, cholesterol, choline chloride, microcrystalline cellulose, potassium sorbate, sodium p-hydroxybenzoate, webster salt, mixed vitamin liquor and distilled water. According to the semi-artificial feed of the red weevil and the preparation method of the semi-artificial feed, the Washington palm leaf stalk fiber powder is selected from a Washington palm leaf stalk; a source of a raw material is convenient and easy to obtain; the semi-artificial feed is applicable to mass production; the mixed vitamin and choline contribute to absorption and conversion of the red weevil, so that a breeding period is shortened significantly; and the microcrystalline cellulose has a good emulsifying effect, and has a very important role in keeping the stability of the semi-artificial feed of the red weevil and uniformly dispersing the components.

The invention relates to healthcare beverage and a preparation method thereof. The healthcare beverage has functions on assisting the adjustment of blood fat and blood pressure. Salvia miltiorrhiza bge.f.alba and hawthorn are adopted as raw materials, and the beverage comprises the following compositions by weight ratio: 10 parts of salvia miltiorrhiza bge.f.alba, 5 parts of hawthorn, 1 part of crystal sugar, 1 part of honey, 100 parts of purified water and 0.02 percent of p-hydroxybenzoate (g.ml<-1>). The healthcare beverage has simple formula, is convenient to take, has a remarkable effect, and is suitable for the flavor of a particular group of people and satisfies the requirement on adjusting the function of the human body.

The invention provides an aromatic amino acid polymer which is prepared by using aromatic ring-containing amino acids such as L-beta-p-hydroxybenzoate alanine (L-tyrosine, Tyr), 2-hydroxyphenylalanine (2HPA), L-3,4-dihydroxyphenylalanine (dopa, L-DOPA ) and the like as monomers, protecting the amino, performing fusion polycondensation, and then de-protecting under an acidic condition to obtain the finish product. The polymer provided by the invention is quite good in degradability and biocompatibility, and can be used as degradable materials for organization engineering materials, package materials, environmentally friendly cleaning agents, detergents and other fields, and also for adsorption of inorganic particles.

The invention discloses a dyeing wastewater treatment method. The method comprises the steps that a compound wastewater treatment agent is prepared from polyacrylamide, aluminum triphosphate, activated carbon, kieselguhr, ethyl acetate, sodium hypochlorite, urea resin, p-hydroxybenzoate, calcium propionate, chlorhexidine iodine, chitosan, soybean fiber extracts and gallic acid and wastewater are subjected to a stirring reaction, ultrasonic treatment is conducted, column elution is conducted through an ion exchange column, flocculant is added and stirred, flocculation precipitation is conducted, supernatant obtained through flocculation precipitation passes through column adsorption resin, filtration treatment is conducted through a membrane filter, bactericidal treatment is conducted, and treated water meeting emission standard is obtained. According to the dyeing wastewater treatment method, the pollutant removal rate is greatly increased, and chromaticity elimination rate is greatly increased; meanwhile, the process is simple and easy to operate, the operability is high, pollution to environment does not exist, the industry requirement can be met, and the dyeing wastewater treatment method has a good application prospect.

The invention discloses a synthetic method for an ultraviolet absorbent namely 4,4'-dihexyloxybenzophenone. The method comprises the following steps: with p-hydroxybenzoic acid as a starting material, carrying out acetylation to protect hydroxy; carrying out a Fredel-Crafts reaction of p-acetoxybenzoic acid and phenol under the catalysis of zinc chloride and phosphorus oxychloride so as to synthesize an intermediate namely phenyl p-hydroxybenzoate; then carrying out deacetylation to remove the protective group, and carrying out Fries rearrangement so as to prepare an intermediate namely 4,4-dihydroxybenzophenone; and forming a salt with 4,4-dihydroxybenzophenone and potassium carbonate, and carrying out a Williamson reaction of 1-bromohexane and the potassium salt of 4,4-dihydroxybenzophenone through catalysis of tetrabutylammonium bromide so as to synthesize the 4,4'-dihexyloxybenzophenone. The synthetic method provided by the invention has the advantages of mild reaction conditions, normal pressure, medium and low temperature, stable quality control, high raw material conversion rate, effective inhibition of side reactions, fewer three wastes, light pollution, and facilitation of protecting the environment and labor of a producer.

The invention relates to toothpaste with efficacy of hemostasis, detoxification, care and refreshing. The toothpaste comprises components as follows: green silicon carbide, mica, fumed silica, sodium lauryl sulfonate, sodium lauryl sulfate, sodium benzoate, p-hydroxybenzoate, sodium carboxymethylcellulose, sodium alginate, sorbitol, a ginseng extracting solution, a pseudo-ginseng extracting solution, a honeysuckle extracting solution and a green tea extracting solution, wherein the ginseng extracting solution, the pseudo-ginseng extracting solution, the honeysuckle extracting solution and the green tea extracting solution are medicines. According to a preparation process of the toothpaste, firstly, deionized water, an abrasive agent, a surfactant and the medicines are heated and mixed at a high speed, then subjected to homogeneous emulsification and then cooled, an additive is added, the mixture is continuously stirred at the constant temperature, and ageing and packaging are performed. With the adoption of an ultrasonic wave emulsification process and through composite use of four traditional Chinese medicine materials, the situation that Chinese traditional medicine toothpaste has a single function is broken.

The invention provides a compound preservative, which comprises 20-40 percent by weight of p-hydroxybenzoate, and 60-80 percent by weight of sorbic acid or other salts, wherein a natural preservative bacteriostatic agent can be further added. The compound preservative has superior preservative performance to various components during individual use and wider application range.

The invention belongs to the technical field of medical detection and in particular relates to a rapid detection kit of beta 2-microglobulin and application of the rapid detection kit. The kit comprises a reagent R1 and a reagent R2, wherein the reagent R1 is composed of potassium dihydrogen phosphate, dodecyl glucoside, octa(ethyleneglycol)mono(dodecyl)ether, nonaethylene glycol monododecyl ether, calcium chloride, p-hydroxybenzoate and water; the reagent R2 is composed of nonaethylene glycol monododecyl ether, dodecyl glucoside, anti-human beta 2-microglobulin antibody latex, p-hydroxybenzoate and water; the diameter of the anti-human beta 2-microglobulin antibody latex is 130nm to 150nm. The rapid detection kit of the beta 2-microglobulin, provided by the invention, has the advantages of high determination sensitivity, high accuracy of a detection result, good repeatability and high stability and is a relatively ideal rapid detection kit of the beta 2-microglobulin; the kit is easy to popularize and apply.

The invention discloses a hydrophobic low-eutectic-point solvent based on lidocaine and a preparation method and extraction application of the solvent, and belongs to the technical field of extraction, separation and enrichment of large cationic compounds. The hydrophobic low-eutectic-point solvent based on lidocaine is characterized in that the hydrophobic low-eutectic-point solvent is synthesized from lidocaine serving as a hydrogen bond acceptor and n-octyl p-hydroxybenzoate serving as a hydrogen bond donor in the molar ratio of 1:(0.25-3). The invention particularly discloses the preparation method of the hydrophobic low-eutectic-point solvent based on lidocaine and application of the solvent in extraction of rhodamine B, methyl violet or / and malachite green in an aqueous solution. When used as an extraction agent, the prepared hydrophobic low-eutectic-point solvent has the advantages of being easy to synthesize, stable in performance, low in toxicity, high in extraction efficiency and the like.

The invention discloses a subprostrate sophora compound traditional Chinese medicine toothpaste and a preparation method. The toothpaste comprises a Chinese-medicinal component, amorphous silica, sorbitol, sodium lauryl sarcosinate, sodium hydroxymethyl cellulose, p-hydroxybenzoate, natural xylitol, thickener and adhesive. A Chinese medicinal composition comprise radix Sophorae Tonkinensis, herbaPogostemonis, herba Eupatorii, flos Lonicerae, radix notoginseng powder, Mentholum, flos Magnoliae, fructus Corni, and rhizoma cimicifugae. A Chinese medicinal preparation is prepare by pretreating Chinese medicinal material, mixing, extracting, mixing with adjuvant, and stirring uniformly. The invention not only can treat oral ulcer but also can effectively alleviate rhinitis symptoms, the methodof high temperature stir-frying not only makes the beneficial ingredients of traditional Chinese medicine easier to extract, and the residue extracted by the traditional Chinese medicine is re-extracted by using CO2 supercritical fluid, and the residue is made into the paste of the exploded bead and the toothpaste, so that the oral ulcer treatment effect is greatly enhanced when the concentrationof the drug is effectively increased when the tooth is brushed.

The invention discloses a preparation method of glycerol monostearate p-hydroxybenzoate, which comprises the following steps: (1) proportionally weighing sodium p-hydroxybenzoate and epoxy chloropropane; adopting tetrabutylammonium bromide as a phase transfer catalyst, adding a proper amount of solvent, and reacting in a sealed constant-temperature stirring reactor; and cooling to obtain an intermediate product glycidyl ester p-hydroxybenzoate; (2) measuring the prepared sulfuric acid solution, pouring into a container with the intermediate product obtained by the step (1), putting the container into a water bath kettle for a constant-temperature heating stirring reaction, and flushing a solid phase by use of deionized water to remove residual impurities; and finally transferring the reaction product in the container into watch glass, and drying and cooling to obtain a glycerol monostearate p-hydroxybenzoate product. By adopting the method disclosed by the invention, the obtained product has high purity and yield over 99.9% and 95% respectively; the operation is simple and convenient, the product is pure, and no meta-position byproduct is generated; the method has a great prospect in industrial application and deserves wide popularization and application.

The invention provides a honeysuckle-containing natural refreshing and anti-acne bath lotion which is refreshing in smell, strong in dirt removing power and mild to skins and has a protective effect. The honeysuckle-containing natural refreshing and anti-acne bath lotion is prepared from 0.1-1% of p-hydroxybenzoate, 18-22% of olefin sulfonate, 11-15% of cocofatty acylamido propyl betaines, 0.2-0.5% of honeysuckle essential oil, 1.5-3% of sodium oleoyl amino fatty acid, 1.5-3% of ethylene glycol monostearate, 0.3-0.5% of bath salt and the balance of deionized water. The main raw materials used in the formula are degradable raw materials which are biodegradable; due to the adoption of the natural and environment-friendly raw materials, the honeysuckle-containing natural refreshing and anti-acne bath lotion conforms to the authentication of the European union and the national professional institute; and the honeysuckle-containing natural refreshing and anti-acne bath lotion passes the ecological and non-phosphorous detection. The honeysuckle-containing natural refreshing and anti-acne bath lotion is favorable in dirt-removing powder, mild and safe in performance and capable of improving the blistering effect, the dirt-removing powder and the heat insulation effect for the skins. The bath lotion provided by the invention is strong in dirt-removing powder, strong in honeysuckle aromatic flavor and capable of taking favorable whitening and heat insulating effects for the skins and also has an anti-acne effect.

The invention discloses a whitening floral water. The whitening floral water comprises the following components by weight: 0.5 to 1.3 parts of chlorhexidine, 3 to 8 parts of aloe extract, 0.1 to 0.3 part of mythyl p-hydroxybenzoate , 2 to 5 parts of glycerin, 1 to 2 parts of mint essence, 1 to 5 parts of hydroxyethyl urea and 100 to 300 parts of deionized water. The whitening floral water disclosed in the invention does not contain ethanol, poses small irritation to skin and is applicable to long-term usage; and the component of aloe extract in the floral water has whitening and skin care effects.