Hydrazine hydrate is a colorless liquid like acetic acid, it also smells like ammonia. It is Also called Hydrazine Monohydrate. This compound is miscible in water in any congruence and it is not soluble in chloroform. If this component mix with the carbon dioxide in the air the product is a white fume. It is known with H6N2O as its chemical formula. Its characteristics are expressed below:
|Density||1.032 g/ml at 20⁰C|
This chemical is extremely noxious and hazardously unstable till it dissolves in water and procures NH2NH2 · xH2O. Its molecular weight is 32 and the hydrazine hydrate with one H2O molecule or monohydrate has a molecular weight of 50. The ratio of their weight is 32/50 or 0.64. it means 100% of the mentioned chemical contains 64 % of hydrazine. so it is important to express employing application due to not misunderstanding of these two products.
Hydrazine is an inorganic component with N2H4 as its chemical formula. This compound is a colorless and highly flammable oily liquid with an ammonia-like odor. Its characteristics are expressed below:
Because of its spectacular structure with two amines, this material is a key parameter for the preparation of many organic heterocyclic compounds. In the specific reaction, it reacts with imides to produce triazoles. As a brilliant nucleophile compound, it can attack sulfonyl and acyl halides. To produce hydrazones there is a need for Reaction occurrence between The tosyl hydrazine and carbonyls. it also has a wide variety of applications in agrochemicals, as anti-scaling, purification processes heating, and cooling systems. Shanghai Chemex is one of the most reputable manufacturers of this chemical in the world.
It is estimated that the Compound Annual Growth Rate of this chemical market gains 4.9% up to 2024. Increasing the requirement of polymer foams in related industries have a major effect on the market due to the prognosis period. Its application in many industries will help the market to grow.
hydrazine hydrate Synthesis
There are some methods for synthesis and three methods are mentioned here:
First method: synthesis of mentioned material from hydrazine sulfate and potassium hydroxide, for this purpose, the mixture of dehydrating hydrazine sulfate and comminuted potassium hydroxide and distilled water were placed. For the first reaction heating is not dispensable and in the following heating is necessary. Reaching pure component needs fractional distillation and it will distill in the temperature range of 117 to 119.
Second method: synthesis from hydrazine sulfate and sodium hydroxide
In this method hydrazine sulfate and sodium hydroxide are applied to a flask with a condenser and distilled water is appended gently through the condenser; the reaction starts and it is very important that any vapors should not be released through the condenser. this chemical may be titrated with standard acid using methyl orange as an indicator or about 0.1 gram, accurately weighed, of the hydrazine hydrate solution is diluted with about 100 ml of water, few drops of starch indicator added, and immediately before titration 5 grams of sodium bicarbonate is introduced. The product is distilled by direct heating. The distillate is a clear liquid and it consists of 40-45% of hydrazine hydrate.
Third method: A procurement procedure of this material which contains the step of hydrolyzing a ketazine in a distillation column to reach hydrazine hydrate in presence of silicon dioxide and nonionic surface active agent having a polyoxyethylene group in its molecule.
Hydrazine hydrate applications
it has a wide range of applications in industries, in fact, hydrazine hydrate is an important industrial chemical and can be applied as pharmaceutical intermediates, procurement of superb purity metals, combinatorial fibers, dyes, and as reducing agents and it also can use oxygen scavenger to regulate the concentration of oxygen to prevent corrosion. One of its important usages is as the precursor to polymerization catalysts. Another application of hydrazine hydrate is rocket fuel and gas precursor preparation in airbags.
safety and Precautions:
- This chemical is grouped as hazardous materials by the 2012 OSHA Hazard Communication Standard;
- Cause it is very air-sensitive so do not allow evaporation to dryness it causes smoke;
- Acquire special instructions before use;
- Before use read all statements about precautions;
- Do not tactility until all safety precautions have been read and realized
- Use personal protective tools as required Wash face, hands, and any exposed skin thoroughly after handling
- Do not eat, drink or smoke when using this component;
- Use only outdoors or in a well-ventilated area;
- Do not breathe dust/fume/gas/mist/vapors/spray;
- Polluted work clothing should not be allowed out of the workplace;
- Put on protective gloves;
- Keep away from heat/sparks/open flames/hot surfaces;
- No smoking Keep cool;
- Noxious if swallowed;
- Noxious in contact with skin Causes extreme skin burns and eye damage;
- May cause respiratory inflammation;
- May cause an allergic skin reaction;
- Noxious if inhaled May causes cancer.