发明名称 |
STABILISATION OF HYDROGEN PEROXIDE SOLUTIONS. |
摘要 |
<p>Dilute aqueous alkaline hydrogen peroxide solutions obtained by dilution of and addition of alkali to a concentrated acidic hydrogen peroxide solution and addition of an aminopolyalkylene phosphonic acid compound as stabiliser can enjoy improved stability by introducing a delay between the addition of the stabiliser and the formation of the dilute alkaline solution sufficient to permit the stabiliser to be transformed to a more active derivative. Preferably, the stabiliser introduced is cyclohexane-1,2-diaminotetrakis (methylene phosphonic acid), and the dilute solution has a pH of from 8.5 to 9.5, and contains sodium pyrophosphate and/or bicarbonate as buffer, at least part of which may be added to the concentrated hydrogen peroxide solution before dilution.</p> |
申请公布号 |
GR3015145(T3) |
申请公布日期 |
1995.05.31 |
申请号 |
GR19950400365T |
申请日期 |
1995.02.22 |
申请人 |
SOLVAY INTEROX LIMITED |
发明人 |
MORRIS, GARETH, WILMOT;FEASEY, NEIL, DAVID;CROFTS, RHONA, DOROTHY;MILLER, DAVID, JOHN;CHALKLEY, NEVILLE, JOHN |
分类号 |
A61L2/18;C01B15/037;C11D3/39;C11D7/54;(IPC1-7):C01B15/037 |
主分类号 |
A61L2/18 |
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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