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The molecular weight of NaCl is 58.5 and that of KCl is 74.6. The atomic weight of chlorine is 35.5. Then Solving these equations for x shows the weight of NaCl to be 0.0625 gram. The weight of KCl is found by subtracting this from 0.15. The above is one of the most common types of indirect analyses. Others are more complex but they can be reduced to algebraic expressions and solved by their aid.
The impurity was principally iron, a most unusual thing in my experience, and was due to two causes revealed by assay of the ore and analysis of the mine water, viz., an excess of arsenate of iron in the stone, and the presence in large proportions of mineral salts, principally chloride of Calcium CaCl., sodium NaCl, and magnesium MgCl2, in the mine water used in the battery.
I know a case in point where an average of nearly five ounces of silver to the ton, at that time worth 30s., was lost owing to ignorance on this subject. Had the ore been calcined with salt, NaCl, the bulk of this silver would have been amalgamated and thus saved.
For the information of readers who do not understand the chemical symbols it may be said that FeCO3 is carbonate of iron; CaCO3 is carbonate of calcium; CaSO4 is sulphate of calcium; CaCl2 is chloride of calcium; MgCl2 is chloride of magnesium; NaCl is chloride of sodium, or common salt.
True, we have things like NaCl solutions in ordinary H O which will carry electricity, but here it's ionic conduction. Even glass will carry electricity very well when hot; when red hot, glass will carry enough electricity to melt it very quickly. But again, glass is not a solid, but a viscous liquid, and it is again carried by ionic conduction.
The exact analysis of the water was as follows: Carbonate of Iron FeCO3 2.76 grains per gallon Carbonate of Calcium CaCO3 7.61 grains per gallon Sulphate of Calcium CaSO4 81.71 grains per gallon Chloride of Calcium CaCl2 2797.84 grains per gallon Chloride of Magnesium MgCl2 610.13 grains per gallon Chloride of Sodium or Common Salt NaCl 5072.65 grains per gallon
The processes included under the term !chlorimetry! comprise those employed to determine chlorine, hypochlorites, bromine, and hypobromites. The reagent employed is sodium arsenite in the presence of sodium bicarbonate. The reaction in the case of the hypochlorites is NaClO + Na AsO > Na AsO + NaCl.
"It may be well to keep in mind that when the druggist says potash he means potassium hydroxid, KOH, a compound of potassium, hydrogen, and oxygen, as the name indicates." "You mentioned the word chlorin," said Mr. Thornton. "That is another element?" "Yes, that is a very common element. Ordinary table salt is sodium chlorid: NaCl.
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