| 发明名称 |
Preparation and purification of hydroxylamine stabilizers |
| 摘要 |
The invention relates to the preparation of ultra-high purity 1,2-diaminocyclohexanetetraacetic acid being essentially free of unwanted metal and metal ion contaminants and its use as a stabilizer for ultra-high purity hydroxylamine compounds used extensively in the production of high premium electronic components.
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| 申请公布号 |
EP1431276(A1) |
申请公布日期 |
2004.06.23 |
| 申请号 |
EP20030027356 |
申请日期 |
2003.11.27 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
WARD, IRL E.;FRENCH, DANIELLE |
| 分类号 |
C07C227/08;C07C227/18;C01B21/14;C07C227/40;C07C227/42;C07C229/16;C07C229/46;(IPC1-7):C07C227/40 |
主分类号 |
C07C227/08 |
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