Hydrazine Standard 500 ppb
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Why Buy Hydrazine Standard 500 ppb Online from UK Chemical Suppliers, ReAgent Chemicals?
ReAgent can supply hydrazine standards 500ppb online in 1L containers, with discounts available for bulk orders. We also offer 50ppb and 80ppb, as well as a variety of other products, from test kits and pharmaceutical chemicals to bulk and bespoke solutions. Simply contact us for further information or free technical advice.
How is hydrazine synthesised?
The most important step in the manufacture of hydrazine is the nitrogen-nitrogen single bond, and several methods have been developed over the years to solve this problem:
Oxidation by chloroamine from hypochlorite on ammonia
This compound can be produced via a reaction with sodium hypochlorite (active ingredient in bleach) and ammonia. In this case, the N-N bond derives from the reaction between chloramine (NH2Cl) and ammonia (NH3).
NH2Cl NH3 → H2N-NH2 HCl
Oxidation by oxaziridine from peroxide on ammonia
A second method to synthesise hydrazine involves a reaction between ammonia and hydrogen peroxide (this is sometimes referred to as the peroxide or ketazine process).
2 NH3 H2O2 → H2N-NH2 2 H2O
This multi-reaction process involves an initial condensation reaction with ketone and ammonia to generate imine, which is subsequently oxidised in the presence of hydrogen peroxide to give oxaziridine (a 3-ring structure with nitrogen, oxygen and carbon). In the next step, this compound reacts with ammonia to produce hydazone, which contains the sought-after N-N single bond. In the final step, hydrazone is converted to acetone azine in the presence of ketone, and then hydrolysed to finally synthesise hydrazine and regenerate acetone.
Oxidation from hypochlorite on urea
A third option to synthesise hydrazine involves oxidation of urea in the presence of sodium hypochlorite.
(H2N)2C=O NaOCl 2 NaOH → N2H4 H2O NaCl Na2CO3
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