The hydrazine a hydrochloride (it is a hydrazine muriatic) represents itself colourless crystal substance with a chemical formula N2H4x2HCl. Let's well dissolve in water, decays at a temperature over 198 degrees. How it is possible to receive a hydrazine muriatic?
It is required to you
- - some reactionary capacity;
- - water solution of a hydrazine sulfate;
- - water solution of barium chloride;
- - glass funnel with the paper filter;
- - capacity for discharge of the formed product.
Instruction
1. The way of receiving a hydrazine a hydrochloride is based on the principle according to which chemical reaction goes all the way if at least one of the formed products is removed from a reactionary zone (that is either gas, or the slightly soluble substance which is dropping out in a deposit is formed).
2. At first write the equation of reaction which you are going to carry out. It will look as follows: N2H4*H2SO4 + BaCl2 = BaSO4 + N2H4*2HCl.
3. Using it, count what quantity a hydrazine sulfate and chloride barium needs to be taken that all hydrazine sulfate reacted. For example, if you have 5 grams a hydrazine sulfate how many it is required to take chloride barium? Considering that molar weight a hydrazine sulfate is equal 130, and chloride barium – 208, by simple calculations define: 5*208 / 130 = 8 grams.
4. So, mix in reactionary capacity (in a flask or in a laboratory glass) the following solutions: 5 grams of a hydrazine of sulfate and 8 grams of chloride barium. Immediately the dense white deposit of sulfate of barium (this almost insoluble substance) will drop out. Separate it from solution by means of a glass funnel and the paper filter. Receive the solution containing a hydrazine a hydrochloride.
5. Having evaporated water, you receive hydrazine hydrochloride crystals. The final osushka (if it is necessary) the formed product can be carried out by means of the vacuum pump and Byukhner's funnel.