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Preparation method of chemical ice bag

An ice pack and chemical technology, applied in the field of chemistry, can solve the problems of short cooling time, rapid changes, unfavorable long-term cooling effect, etc., and achieve the effect of increasing the cooling time

Inactive Publication Date: 2017-12-22
NANTONG ITALMATCH CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can effectively reduce the temperature, there is a problem because of the water in the preparation process: the dissolution rate of salt in water is very fast, the temperature will change quickly, but the refrigeration time is not long
In addition, the ice packs made are in the form of granules, and the granules are discontinuous, which is not conducive to maintaining the long-term cooling effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A preparation method of a chemical ice pack, comprising the following steps:

[0014] (1) Raw materials include: 80 parts of manganese nitrate, 70 parts of potassium aluminum sulfate dodecahydrate, 5 parts of ethanol, 17 parts of sodium chloride, and 2 parts of sodium hydroxide;

[0015] (2) Weigh accurately according to the weight ratio of each component, add the weighed manganese nitrate into half of potassium aluminum sulfate dodecahydrate and stir at a stirring speed of 150r / min, and heat to 90°C, when the solution appears After being transparent, stop heating and let it cool down to room temperature naturally to obtain solution A;

[0016] (3) Add ethanol to half of potassium aluminum sulfate dodecahydrate under stirring state, make it stir evenly, and obtain solution B;

[0017] (4) In solution B, first add sodium hydroxide and stir evenly, then add sodium chloride, when it is evenly stirred and make it transparent, seal it with a bag to get a chemical ice pack. ...

Embodiment 2

[0019] A preparation method of a chemical ice pack, comprising the following steps:

[0020] (1) Raw materials include: 100 parts of manganese nitrate, 80 parts of potassium aluminum sulfate dodecahydrate, 11 parts of ethanol, 40 parts of sodium chloride, and 6 parts of sodium hydroxide;

[0021] (2) Weigh accurately according to the weight ratio of each component, add the weighed manganese nitrate into half of potassium aluminum sulfate dodecahydrate and stir at a stirring speed of 300r / min, and heat to 100°C, when the solution appears After being transparent, stop heating and let it cool down to room temperature naturally to obtain solution A;

[0022] (3) Add ethanol to half of potassium aluminum sulfate dodecahydrate under stirring state, make it stir evenly, and obtain solution B;

[0023] (4) In solution B, first add sodium hydroxide and stir evenly, then add sodium chloride, when it is evenly stirred and make it transparent, seal it with a bag to get a chemical ice pac...

Embodiment 3

[0025] A preparation method of a chemical ice pack, comprising the following steps:

[0026] (1) Raw materials include: 90 parts of manganese nitrate, 75 parts of potassium aluminum sulfate dodecahydrate, 8 parts of ethanol, 29 parts of sodium chloride, and 4 parts of sodium hydroxide;

[0027] (2) Weigh accurately according to the weight ratio of each component, add the weighed manganese nitrate into half of potassium aluminum sulfate dodecahydrate and stir at a stirring speed of 175r / min, and heat to 95°C, when the solution appears After being transparent, stop heating and let it cool down to room temperature naturally to obtain solution A;

[0028] (3) Add ethanol to half of potassium aluminum sulfate dodecahydrate under stirring state, make it stir evenly, and obtain solution B;

[0029] (4) In solution B, first add sodium hydroxide and stir evenly, then add sodium chloride, when it is evenly stirred and make it transparent, seal it with a bag to get a chemical ice pack. ...

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PUM

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Abstract

The invention discloses a preparation method of a chemical ice bag. The preparation method comprises the following steps: (1) preparing raw materials: 70 to 110 parts of manganese nitrate, 60 to 90 parts of potassium aluminum sulfate dodecahydrate, 5 to 11 parts of ethanol, 17 to 40 parts of sodium chloride and 2 to 6 parts of sodium hydroxide; (2) accurately weighing all the components according to the weight part ratio; adding the weighed manganese nitrate into one half of the potassium aluminum sulfate dodecahydra and stirring, wherein the stirring speed is 150r / min to 300r / min; heating to 90 DEG C to 100 DEG C; after a solution becomes transparent, stopping heating and naturally cooling the solution to room temperature to obtain a solution A; (3) under a stirring state, adding the ethanol into one half of the potassium aluminum sulfate dodecahydrate; uniformly stirring to obtain a solution B; (4) adding the sodium hydroxide into the solution B and uniformly stirring; adding the sodium chloride and uniformly stirring to enable a mixture to be transparent; packaging in a bag to obtain the chemical ice bag. The preparation method of the chemical ice bag, disclosed by the invention has the advantages that continuous refrigeration can be realized and the refrigeration time is prolonged.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and in particular relates to a preparation method of a chemical ice pack. Background technique [0002] Chemical ice packs are made by using the principle that certain chemical substances absorb heat during the dissolution process, and the temperature in the bag drops rapidly. It is mainly used in medical care (such as cold compress to reduce swelling), or food preservation, or medicine refrigeration, etc., and has good results. In short, chemical ice packs play a relatively important role in daily life. [0003] In recent years, with the increasing use of ice packs, people have invested a lot in research on chemical ice packs and achieved certain research results. A kind of name is disclosed as " a kind of ice bag " (publication number: CN 1308922 A, publication date: August 22, 2001) as disclosed in Chinese patent literature. It discloses an ice pack capable of rapidly cooling down to 26° ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06C09K5/18A61F7/10F25D3/08
CPCC09K5/066A61F7/10C09K5/18F25D3/08
Inventor 胡剑锋
Owner NANTONG ITALMATCH CHEM