Potassium sulphate is a foul smelling chemical. [Please select]
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You have already seen that the fine blue ammonia-sulphate of copper transmits a large portion of green, while cutting off all the less refrangible light. [Please select]
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With the blue ammonia-sulphate of copper, which transmits no red, this effect is not obtained. [Please select]
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Glycerine is a good tempering substance, and to this may be added a small amount of sulphate of potash. [Please select]
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Boiler scale is composed of the carbonate or the sulphate of lime. [Please select]
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Sulphate of quinine is made by the use of sulphuric acid as a solvent. [Please select]
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Mercuric chloride, 1 part; cupric sulphate, 10 parts; zinc sulphate, 50 parts; sodium chloride, 65 parts; water to make 1,000 parts. [Please select]
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