发明名称 |
MEMBRANE D'AG2S POUR LE DOSAGE DES IONS HALOGENURES PENDANT LA PREPARATION DES EMULSIONS PHOTOGRAPHIQUES. |
摘要 |
Silver sulphide crystalline membrane for the determination of halide ions and method of production. According to the invention, the membrane comprises silver sulphide doped with an ion capable of forming either with Ag<+> or X<-> a salt which presents a much higher degree of insolubility than chemical species in solution. Preferably, the membrane also contains a hydrophobic compound which is resistant to reagents. The membrane is prepared by co-precipitating silver sulphide and the doping agent, homogenizing with the hydrophobic compound and then pressing. The membrane may be used in an electrode for the detection of halides during the preparation of photographic emulsions. |
申请公布号 |
FR2658297(A1) |
申请公布日期 |
1991.08.16 |
申请号 |
FR19900001857 |
申请日期 |
1990.02.12 |
申请人 |
KODAK PATHE |
发明人 |
ROBERT PHILIPPE, GERALD KODAK-PATHE;KODAK-PATHE GERALD |
分类号 |
C08L27/12;G01G5/02;G01N27/333;G01N27/40;G01N27/416 |
主分类号 |
C08L27/12 |
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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