For the cathode, the platinum can be replaced by cobalt sulphide, which is far less expensive. From Wordnik.com. [PhysOrg.com - latest science and technology news stories] Reference
Many marine bacteria generate energy by oxidising the gas hydrogen sulphide, which is common in ocean sediments. From Wordnik.com. [New Scientist - Online News] Reference
Selenium can be precipitated with sulphuretted hydrogen as a sulphide, which is readily soluble in ammonium sulphide. From Wordnik.com. [A Text-book of Assaying: For the Use of Those Connected with Mines.] Reference
The tone given by this kind of sulphide is usually of a more purplish color. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
Various artificial compounds, such as sulphide of calcium (Canton's phosphorus, as it is called from the discoverer), sulphate of barium. From Wordnik.com. [Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky] Reference
Not that this totally unfits the sulphide for use. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
When prepared by precipitation the sulphide is white. From Wordnik.com. [An Elementary Study of Chemistry] Reference
Since copper sulphide is almost insoluble in water, as soon as. From Wordnik.com. [An Elementary Study of Chemistry] Reference
The most important are the sulphide, carbonate, and hydroxide. From Wordnik.com. [An Elementary Study of Chemistry] Reference
A good sulphide tone presupposes a good black and white bromide. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
It is prepared commercially by careful roasting of the sulphide. From Wordnik.com. [An Elementary Study of Chemistry] Reference
This sulphide will give tones which are sepia brown with most papers. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
A dilute solution of ammonium sulphide can be employed as a clearing agent. From Wordnik.com. [Photographic Reproduction Processes] Reference
It looked like gin, and it smelt like a sulphide factory when it got on my clothes. From Wordnik.com. [The La Chance Mine Mystery] Reference
A sulphide-toned print is at least as permanent as the bromide from which it is made. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
We will now give the formulae for the two solutions required in the sulphide process. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
This is one of the most necessary items to bear in mind in using the sulphide process. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
Certain gaseous constituents, such as hydrogen sulphide and ammonia, must also be removed. From Wordnik.com. [An Elementary Study of Chemistry] Reference
~ The ores employed in the preparation of zinc are chiefly the sulphide, oxide, and carbonate. From Wordnik.com. [An Elementary Study of Chemistry] Reference
This substance bears the same relation to ferrous sulphide that hydrogen dioxide does to water. From Wordnik.com. [An Elementary Study of Chemistry] Reference
Both of these are converted into silver sulphide when treated with a solution of sodium sulphide. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
It manufactures olive oil, soap, carbon sulphide and playing-cards, and has a large iron foundry. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon"] Reference
This sulphide is then heated in a current of moist carbon dioxide, barium carbonate being formed, BaS +. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon"] Reference
Not so, however, in the case of the sulphide solution, which requires to be very carefully made up and used. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
~ It has been seen that iron sulphide is composed of two entirely different substances, -- iron and sulphur. From Wordnik.com. [An Elementary Study of Chemistry] Reference
Therefore a sulphide-toned print should be permanent, too, a conclusion which is fully borne out in practice. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
Not only that, defects in the bromide which may lie latent while the print is untoned come to light in the sulphide bath. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
It is a new substance with new properties, resulting from the chemical union of iron and sulphur, and is called iron sulphide. From Wordnik.com. [An Elementary Study of Chemistry] Reference
In this a zinc sulphide screen is fitted at the end of a short brass tube, with a speck of radium about a millimeter away from it. From Wordnik.com. [The Life Radiant] Reference
I grabbed the reins from Paulette, and I thought of skunks, and a sulphide factory, -- and dead skunks and rotten sulphide at that. From Wordnik.com. [The La Chance Mine Mystery] Reference
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. From Wordnik.com. [Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements] Reference
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