Preparation of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate
Abstract
A process of preparing bis-(1(2)H-tetrazol-5-yl)-amine monohydrate is provided including combining a dicyanamide salt, an azide salt and water to form a first reaction mixture, adding a solution of a first strong acid characterized as having a pKa of less than about 1 to said first reaction mixture over a period of time characterized as providing a controlled reaction rate so as to gradually form hydrazoic acid without loss of significant quantities of hydrazoic acid from the solution while heating the first reaction mixture at temperatures greater than about 65.degree. C., heating the resultant reaction mixture at temperatures greater than about 65.degree. C. for a period of time sufficient to substantially completely form a reaction product, treating the reaction product with a solution of a second strong acid to form a product of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate, and, recovering the bis-(1(2)H-tetrazol-5-yl)-amine monohydrate product.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 921800
- Patent Number(s):
- 6,570,022
- Application Number:
- 09/957,938
- Assignee:
- The Regents of the University of California (Los Alamos, NM) ALO
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Naud, Darren L, and Hiskey, Michael A. Preparation of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate. United States: N. p., 2003.
Web.
Naud, Darren L, & Hiskey, Michael A. Preparation of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate. United States.
Naud, Darren L, and Hiskey, Michael A. Tue .
"Preparation of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate". United States. https://www.osti.gov/servlets/purl/921800.
@article{osti_921800,
title = {Preparation of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate},
author = {Naud, Darren L and Hiskey, Michael A},
abstractNote = {A process of preparing bis-(1(2)H-tetrazol-5-yl)-amine monohydrate is provided including combining a dicyanamide salt, an azide salt and water to form a first reaction mixture, adding a solution of a first strong acid characterized as having a pKa of less than about 1 to said first reaction mixture over a period of time characterized as providing a controlled reaction rate so as to gradually form hydrazoic acid without loss of significant quantities of hydrazoic acid from the solution while heating the first reaction mixture at temperatures greater than about 65.degree. C., heating the resultant reaction mixture at temperatures greater than about 65.degree. C. for a period of time sufficient to substantially completely form a reaction product, treating the reaction product with a solution of a second strong acid to form a product of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate, and, recovering the bis-(1(2)H-tetrazol-5-yl)-amine monohydrate product.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {5}
}