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Sodium salt chemical ice bag 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

Active Publication Date: 2015-11-11
GUILIN RONGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although sodium nitrate can also be refrigerated, the current research on chemical ice packs specifically targeting sodium nitrate as a refrigerant is still very limited

Method used

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  • Sodium salt chemical ice bag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a sodium salt chemical ice bag and a preparation method thereof. The ice bag is composed of the following components in parts by weight: 40 to 50 parts of sodium nitrate, 10 to 20 parts of sodium borate, 20 to 30 parts of sodium sulfate decahydrate, 1 to 3 parts of sodium carboxymethyl cellulose, 1 to 3 parts of sodium silicate, 1 to 5 parts of sodium chloride, and 1 to 5 parts of sodium hydroxide. The preparation method comprises the following steps: precisely weighing the components according to the formula mentioned above, adding weighed sodium carboxymethyl cellulose into sodium borate, stirring, heating, stopping heating when the solution turns transparent so as to obtain a solution A; sequentially adding sodium nitrate, sodium sulfate decahydrate, and sodium silicate into the solution A under stirring, evenly stirring to obtain a solution B; adding sodium hydroxide into the solution B, evenly stirring, then adding sodium chloride, evenly stirring, when the solution becomes transparent, and packing the solution into bags. The provided chemical ice bag has the advantages of low refrigeration temperature and long refrigeration time.

Description

technical field [0001] The invention relates to a sodium salt chemical ice pack and a preparation method thereof, belonging to the technical field of chemistry. Background technique [0002] Chemical ice packs are made using the principle that certain chemical substances (such as ammonium salts, nitrates) 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 (such as vaccine) cold storage, etc., and has good results. In short, chemical ice packs play a relatively important role in daily life. [0003] Usually people use ice cubes to realize the purpose of cooling, but use ice cubes to bring great inconvenience, such as ice cubes are solid, the contact area is not large, the cooling is uneven, and it is difficult to achieve the desired effect. Compared with ice cubes, chemical ice packs have the characteristics of small size, li...

Claims

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Application Information

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IPC IPC(8): C09K5/16
Inventor 黄琳
Owner GUILIN RONGTONG TECH CO LTD
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