The Chemical Effects of Storing Hydrazine Containing Carbon Dioxide Impurity in Stainless Steel Systems
Abstract
The effect of low concentrations (less than 250 ppm) of dissolved carbon dioxide (carbazic acid) on the rate of decomposition of hydrazine, in both stainless steel and glass vessels, has been investigated. In a stainless steel vessel at 60 C the rate of hydrazine decomposition was found to be directly proportional to the total concentration of added carbon dioxide (above about 20 ppm) while for a glass vessel at 51 C the relationship between concentration of added carbazic acid and hydrazine decomposition rate is best interpreted in terms of a Langmuir isotherm equation. The preparation of some carbazato-complexes of iron, chromium and nickel, such as may be formed during the hydrazine/carbon dioxide corrosion of stainless steel, is also reported. Additions of small amounts of dicarbazatodihydrazineiron (11) to hydrazine in a glass vessel had no measurable effect on the decomposition rate at 43 C. Tricarbazatochromium (111) dihydrate was found to be similarly inactive while the principal nickel carbazato- complex is completely insoluble in hydrazine.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 02, 1982
- Accession Number
- ADP004440
Entities
People
- J. M. Bellerby
Organizations
- Ministry of Defense