Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Quantitative testing device for long-term chemical stability of industrial nitrocellulose

A technology of nitrocellulose and chemical stability, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, which can solve the problem that the amount of nitrous gas cannot be quantitatively measured and can only be qualitatively tested. and other issues to achieve reliable conclusions and good technical effects

Inactive Publication Date: 2019-04-23
国家安全生产监督管理总局化学品登记中心 +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is that in the prior art, only qualitative testing but no quantitative measurement of nitrous gas content is possible. A new quantitative testing device for the long-term chemical stability of industrial nitrocellulose is provided, which has the ability to quantitatively measure Advantages of nitrous gas

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quantitative testing device for long-term chemical stability of industrial nitrocellulose
  • Quantitative testing device for long-term chemical stability of industrial nitrocellulose
  • Quantitative testing device for long-term chemical stability of industrial nitrocellulose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A quantitative test device for long-term chemical stability of industrial nitrocellulose, nitrocellulose stability test tube such as figure 1 as shown, figure 1 In the middle, the left side is the glass tube in the lower part of the test tube, and the right side is the condenser in the upper part of the test tube. During the experiment, the nitrocellulose sample was added to the glass tube on the left, and the condenser was connected to the upper part. In the figure, the ground plug 1 is connected to the ground port 2, and the ground plug 5 is connected to the ground port 6 to complete the assembly of the stability test tube.

[0035] The invention is applicable to the quantitative stability test of various types of nitrocellulose.

[0036] 1. Test principle:

[0037] Put 1 or 2g of nitrocellulose sample into a stable tube, heat it in a constant temperature metal bath at 132°C±1°C for two hours, and measure the amount of nitrous gas released during the heating proces...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a quantitative testing device for long-term chemical stability of industrial nitrocellulose and application of the quantitative testing device. The problem that in the prior art, the amount of nitrous gas can only be tested qualitatively and cannot be tested quantitatively is mainly solved. According to the quantitative testing device for the long-term chemical stability of the industrial nitrocellulose, the quantitative testing device comprises testing tubes, a metal bath, a dryer, an oven and a burette, each testing tube comprises a glass tube on the lower part and acondenser on the upper part, the glass tubes and the condensers are connected through ground openings, one or more testing tubes are placed in the metal bath, the over is used for pre-drying of a test sample, the dryer is used for re-drying the dried test sample, the burette is used for conducting alkali titration on liquid obtained in the glass tubes on the lower part in the test process, whether the sample has the long-term chemical stability or not is judged by determining the amount of the nitrous gas released by each gram of the nitrocellulose, thus the problem is well solved by adoptingthe technical scheme, and the quantitative testing device can be used for quantitative testing of the long-term chemical stability of the industrial nitrocellulose.

Description

technical field [0001] The invention relates to a quantitative testing device for long-term chemical stability of industrial nitrocellulose. Background technique [0002] The stabilization treatment of industrial nitrocellulose is a decisive and key step in the production process of nitrocellulose. In order to obtain a stable industrial nitrocellulose product that has no danger of spontaneous combustion throughout the storage period, can be safely transported and used, it must be Each production batch is stabilized and properly controlled. Therefore, in order to judge whether industrial nitrocellulose can meet the requirements of transportation, storage and use after stabilization treatment, long-term chemical stability test of nitrocellulose must be carried out. As the management of hazardous chemicals in our country is becoming increasingly standardized and various testing methods are gradually perfected, the present invention has considerable application and promotion va...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 高月张金梅徐鹏飞刘奥林
Owner 国家安全生产监督管理总局化学品登记中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com