发明名称 |
CONTROLLED TRACE ELEMENT RELEASE IN AQUEOUS MEDIA |
摘要 |
A composition for providing a substantially controlled level of dissolved trace element in water comprises a trace element compound in a relatively insoluble form. Preferably the composition comprises a relatively insoluble trace element compound and a binder which results in the composition having a different solubility product to that of the trace element alone. The binder may be plaster of paris. |
申请公布号 |
NZ197731(A) |
申请公布日期 |
1985.08.30 |
申请号 |
NZ19810197731 |
申请日期 |
1981.07.16 |
申请人 |
MCKECHNIE CHEMICALS LTD. |
发明人 |
HUGHES, A.C.;COPEMAN, R.C.;MARPLES, T.N.R. |
分类号 |
C02F1/50;A01N25/34;A01N59/20;A23K1/175;A23L2/38;C02F1/66;C02F1/68 |
主分类号 |
C02F1/50 |
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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