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Ammonium Nitrate and water.

Urea + plus a Non-Toxic Cooling Additive and Water providing a safer alternative to the dangerous Ammonium Nitrate

*Ammonium Nitrate is highly dangerous and used as an oxidizing agent in explosives.

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โˆ™ 2011-03-15 19:27:33
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Q: What is in instant cold packs?
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Related questions

Can you refreeze or refrigerate an instant cold pack?

can you refreeze cold packs


Where can you find ammonium nirate?

inside most instant cold packs


What happens when you mix ammonium nitrate and water togather?

they react together to become very cold that's why its used in instant cold packs.


What are some retailers that sell cold packs?

Cold packs can be purchased at most big box stores such as Walmart or Target in their first aid section. They are commonly known as ice packs where one can either break the bag to make instant cold to treat injuries or they can be shaken to create the same effect.


What happens to the reaction during endothermic and exothermic reaction?

endothermic absorbs energy from the surrounding environment -think instant cold packs. Exothermic gives off energy to the surrounding environment - think instant hot packs.


Does nexcare instant cold packs have amonia nitrate?

According to the msds it should, if you can see 2640 written on it anywhere.


Why can't you refreeze instant cold packs?

actually, you can.


How do you use instant cold packs?

There's an ampule inside them. Bend until you can hear the ampule break, then shake them to start the chemical indothermic reaction.


Do first aid instant cold packs expire?

Technically no they don't. However the chemicals can break down and the packaging can deteriorate. I would replace them every couple of years.


What is a substance that dissolves endothermically?

Examples include Urea [CO(NH2)2], Potassium Nitrate [KNO3] and Ammonium Nitrate [NH4NO3]. All are commonly found in "Instant cold packs" that become cold when you rupture the inner bag by depressing the pack gently but firmly. When then inner water makes contact with the chemicals listed above inside the outer bag of the pack, the endothermic reaction begins. This is the source of the cold temperature these types of Instant Cold Packs produce.


Who invented instant cold packs?

The first of the instant cold packs was a liquid-type invented by Albert A. Robbins and patented August 11, 1959. Robbins' "Chemical Freezing Package" involved and outer pouch containing two separate compartments for water and ammonium nitrate that would mix and freeze when the user split a perforation between the two - say by hitting or snapping the package as we would with the modern variety. Robbins' patent was assigned to Kwik-Kold of America. Parent company Cardinal Health continues to market this, and the more recently invented gel-type cold packs, to this day.


Are sodium acetate instant heat packs mixtures?

Yes, the compound in the packs is a supersaturated solution of sodium acetate.


Who invented cold packs?

Cold packs were invented 25 years ago by Cardinal Health.


What happens to energy in an endothermic reaction?

Energy (in the form of heat) is absorbed from the environment during endothermic reactions. Instant cold packs, for example, become cold when the ammonium nitrate and water are mixed. As the chemical reaction takes place, it absorbs heat, which is why the pack feels cold.


Why is it necessary to squeeze cold packs?

Instant cold packs consist of two substances that are kept separate until they need to mix. In most cases they consist of some salt, such as ammonium nitrate, contained in an outer bag with water in an inner bag. Squeezing the pack breaks the inner bag, releasing the water, which dissolves the ammonium nitrate. This process absorbs heat, making the pack cold.


Formula of ammonium nitrate?

The formula of ammonium nitrate is NH4NO3. By the way, to make ammonium nitrate, add nitric acid to ammonia. Ammonium nitrate is used commercially in instant cold packs.


How are Cold packs used?

Cold packs and ice bags are placed on a localized site and provide topical relief


What is it called when two substances get colder in a chemical reaction?

That is an ENDOTHERMIC reaction. It absorbs heat, rather than giving off heat. The instant cold packs in first aid kits use this property- they contain ammonium nitrate and water- which get cold when combined.


Why do ice packs get so cold?

the ammonium nitrate used in most common ice packs retains cold temperatures


Why do cold packs feel cold?

ammonium nitrate


Is there chemical reactions in hot and cold packs?

Yes, hot packs have exothermic reactions (the contents create heat) and cold packs have endothermic reactions (they require heat to occur, therefore making the surroundings colder). In hot packs its a reaction between water and a salt solution, and in cold packs its normally water and ammonium nitrate. peeace


What Yu-Gi-Oh booster packs have Instant Fusion?

You can find "Instant Fusion" in Cyberdark Impact and Champion Pack Game 7.


Ammonium nitrate and water-chemical reaction?

When ammonium nitrate (NH4NO3) is mixed with water, the dissolution of ammonium nitrate occurs - that is, it is broken up into its ions. This is endothermic, and is the driving reaction behind instant cold packs.


What keeps lunch cold?

Ice packs keeps lunches cold.


How do cold packs work?

Instant hot and cold packs are used by athletes to quickly and conveniently treat an injury. They last for about 20 minutes. The packs take advantage of chemicals that either absorb a lot of heat or release a lot of heat when dissolved in water. When a chemical process absorbs a lot of heat it is called endothermic. When heat is released, it is called exothermic. In cold packs, ammonium nitrate is used because it absorbs a lot of heat when it dissolves in water. The water and ammonium nitrate are in separate compartments in the pack. When the cold pack is needed, the chambers are broken and the ammonium nitrate dissolves in the water, absorbing heat and making the pack as cold as 0C. In hot packs, calcium chloride or magnesium sulphate are used, along with the water. They release heat when the chambers are broken and the chemical dissolves in the water. A hot pack can reach a temperature of 90C. :)