发明名称 |
THE TREATMENT OF AQUEOUS SYSTEM |
摘要 |
A method of inhibiting corrosion in an aqueous system comprises adding to the system a water soluble inorganic nitrite and an organic phosphonate which contains at least one carboxylic acid group and at least one phosphonic acid group the said two acid groups being attached to carbon atoms, the concentration of phosphonate exceeding 5 ppm weight per volume and the weight ratio of nitrite to phosphonate being from 90:10 to 5:95. |
申请公布号 |
PH19173(A) |
申请公布日期 |
1986.01.16 |
申请号 |
PH19860000287 |
申请日期 |
1983.04.18 |
申请人 |
DEARBORN CHEMICALS LIMITED |
发明人 |
BRIAN GREAVES;ALAN MARSHALL |
分类号 |
C23F11/167;C23F11/08;C23F11/18 |
主分类号 |
C23F11/167 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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