A kind of sodium salt chemical ice pack and preparation method thereof
A technology of sodium salt chemistry and ice packs, applied in the field of chemistry, can solve problems such as limited research on chemical ice packs, and achieve the effects of reducing energy loss and increasing refrigeration time
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Embodiment 1
[0019] A sodium salt chemical ice pack is made of the following components in proportions by weight: 45 parts of sodium nitrate, 15 parts of sodium borate, 25 parts of sodium sulfate decahydrate, 2 parts of sodium carboxymethylcellulose, and 2 parts of sodium silicate 3 parts, 3 parts of sodium chloride, 3 parts of sodium hydroxide.
[0020] The preparation method of described sodium salt chemical ice pack comprises the steps:
[0021] (1) Weigh accurately according to the weight ratio of each component, add the weighed sodium carboxymethylcellulose into sodium borate and stir at a stirring speed of 125r / min, and heat to 65°C, when the solution becomes transparent , stop heating, let it cool to room temperature naturally, obtain solution A;
[0022] (2) Add sodium nitrate, sodium sulfate decahydrate, and sodium silicate to solution A successively under stirring, and stir it evenly to obtain solution B;
[0023] (3) In solution B, first add sodium hydroxide and stir evenly, t...
Embodiment 2
[0025] A sodium salt chemical ice pack is made of the following components in proportion by weight: 40 parts of sodium nitrate, 10 parts of sodium borate, 20 parts of sodium sulfate decahydrate, 3 parts of sodium carboxymethylcellulose, and 3 parts of sodium silicate Parts, 5 parts of sodium chloride, 5 parts of sodium hydroxide.
[0026] The preparation method of described sodium salt chemical ice pack comprises the steps:
[0027] (1) Weigh accurately according to the weight ratio of each component, add the weighed sodium carboxymethyl cellulose into sodium borate and stir at a stirring speed of 100r / min, and heat to 70°C, when the solution becomes transparent , stop heating, let it cool to room temperature naturally, obtain solution A;
[0028] (2) Add sodium nitrate, sodium sulfate decahydrate, and sodium silicate to solution A successively under stirring, and stir it evenly to obtain solution B;
[0029] (3) In solution B, first add sodium hydroxide and stir evenly, the...
Embodiment 3
[0031] A sodium salt chemical ice pack, made of the following components by weight: 50 parts of sodium nitrate, 20 parts of sodium borate, 30 parts of sodium sulfate decahydrate, 1 part of sodium carboxymethyl cellulose, and 1 part of sodium silicate 1 part, 1 part sodium chloride, 1 part sodium hydroxide.
[0032] The preparation method of described sodium salt chemical ice pack comprises the steps:
[0033] (1) Weigh accurately according to the weight ratio of each component, add the weighed sodium carboxymethylcellulose into sodium borate and stir at a stirring speed of 150r / min, and heat to 60°C, when the solution becomes transparent , stop heating, let it cool to room temperature naturally, obtain solution A;
[0034] (2) Add sodium nitrate, sodium sulfate decahydrate, and sodium silicate to solution A successively under stirring, and stir it evenly to obtain solution B;
[0035] (3) In solution B, first add sodium hydroxide and stir evenly, then add sodium chloride, wh...
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