发明名称 |
Composition for cleaning silver or copper |
摘要 |
A chemical cleaning composition for silver- or copper-containing surfaces consists of a water-soluble solid or powder comprising thiourea or a derivative thereof, and is formulated in unit application form, e.g. in tablet or sachet form. A preferred composition comprises up to 60% thiourea or a derivative thereof; up to 4% surfactant; not more than 40% acidifier; less than 20% disintegrant; up to 10% binder; 0-1% lubricant; and up to 40% diluent. |
申请公布号 |
AU2972997(A) |
申请公布日期 |
1998.01.07 |
申请号 |
AU19970029729 |
申请日期 |
1997.06.04 |
申请人 |
RECKITT + COLMAN PRODUCTS LIMITED |
发明人 |
MARK LAING;MARK BEESTON |
分类号 |
C11D3/34;C11D17/00;C11D17/04;C23G1/10 |
主分类号 |
C11D3/34 |
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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