JPS5764663A - Preparation of guanidine sulfamate - Google Patents
Preparation of guanidine sulfamateInfo
- Publication number
- JPS5764663A JPS5764663A JP14009280A JP14009280A JPS5764663A JP S5764663 A JPS5764663 A JP S5764663A JP 14009280 A JP14009280 A JP 14009280A JP 14009280 A JP14009280 A JP 14009280A JP S5764663 A JPS5764663 A JP S5764663A
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- sulfamic acid
- dicyandiamide
- water
- guanidine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fireproofing Substances (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as a flame-retardant for pater, etc. having improved heat stability, advantageously even in the admixture of water, and in high purity by one process, by reacting sulfamic acid with dicyandiamide while ammonia is fed to the reaction system sufficiently.
CONSTITUTION: In the process of ammonia, sulfamic acid and dicyandiamide are subjected to batch reaction, to give sulfamic acid guanidine. The rate of addition of ammonia is controlled to make pH ≥7. Usually, in the presence of ammonia, sulfamic acid and dicyandiamide are added in the form of powder and reacted while an ammonia gas is being introduced to a solution of sulfamic acid guanidine which is made molten by heating. A solvent such as water may be used. The titled substance with a purity ≥95% can be obtained easily.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55140092A JPS5950668B2 (en) | 1980-10-07 | 1980-10-07 | Production method of guanidine sulfamate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55140092A JPS5950668B2 (en) | 1980-10-07 | 1980-10-07 | Production method of guanidine sulfamate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5764663A true JPS5764663A (en) | 1982-04-19 |
JPS5950668B2 JPS5950668B2 (en) | 1984-12-10 |
Family
ID=15260760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55140092A Expired JPS5950668B2 (en) | 1980-10-07 | 1980-10-07 | Production method of guanidine sulfamate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5950668B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2265942A (en) * | 1939-11-18 | 1941-12-09 | American Cyanamid Co | Amidine sulphamates and a process for making them |
JPS50129523A (en) * | 1974-03-25 | 1975-10-13 | ||
JPS5439020A (en) * | 1977-08-30 | 1979-03-24 | Kashiwa Kagaku Kogyo Kk | Process for preparing quanidine salts |
-
1980
- 1980-10-07 JP JP55140092A patent/JPS5950668B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2265942A (en) * | 1939-11-18 | 1941-12-09 | American Cyanamid Co | Amidine sulphamates and a process for making them |
JPS50129523A (en) * | 1974-03-25 | 1975-10-13 | ||
JPS5439020A (en) * | 1977-08-30 | 1979-03-24 | Kashiwa Kagaku Kogyo Kk | Process for preparing quanidine salts |
Also Published As
Publication number | Publication date |
---|---|
JPS5950668B2 (en) | 1984-12-10 |
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