...Silver sulphide is a most permanent substance... 
John A. Tennant 「Bromide Printing and Enlarging」
...Both of these are converted into silver sulphide when treated with a solution of sodium sulphide...
John A. Tennant 「Bromide Printing and Enlarging」
...For this reason, it is best to make up the sulphide into solution of 20 per cent strength, and add this to water to make the toning bath...
John A. Tennant 「Bromide Printing and Enlarging」
... This sulphide will give tones which are sepia brown with most papers...
John A. Tennant 「Bromide Printing and Enlarging」
...The tone given by this kind of sulphide is usually of a more purplish color...
John A. Tennant 「Bromide Printing and Enlarging」
...Impure air, or sulphuretted hydrogen, browns or blackens white lead,converting it partially or wholly into sulphide...
George Field 「Field's Chromatography」
...To the colour of oxide of zinc, sulphurettedhydrogen is altogether harmless; sulphide of zinc being itself white...
George Field 「Field's Chromatography」
...The new metal indium, for instance,furnishes a bright yellow sulphide, like that of cadmium...
George Field 「Field's Chromatography」
...Called also Mineral Yellow, has improperly been classed as anorpiment, from which it differs in not being a sulphide, and incontaining lead...
George Field 「Field's Chromatography」
...Crookes, who discovered this new metal in 1861, believes that thedeep orange shade observable in some specimens of sulphide of cadmium isdue to the presence of thallium...
George Field 「Field's Chromatography」
...The tint of cadmium sulphide is a mere matter ofmanufacture, seeing that from the same sample of metal there can beobtained lemon-yellow, pale yellow, deep yellow, orange-yellow, andorange-red...
George Field 「Field's Chromatography」
...They have all become pale, whitish,or of a drab cast, evidently through the oxidation of the sulphur, orrather the sulphide of iron formed during the calcination...
George Field 「Field's Chromatography」
...An artificial sulphide can be prepared by dry andwet processes, which is subject to gradual oxidation on exposure to theair, and consequent conversion into grey or white...
George Field 「Field's Chromatography」
..."Replenishing the supply of sulphide," whispered Winslow...
Various 「Astounding Stories of Super-Science, June, 1930」
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