Methods in Chemical Analysis Originated Or Developed in the Kent Chemical Labor
Methods in Chemical Analysis Originated Or Developed in the Kent Chemical Labor
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SILICON. The Detection of Silicon in Silicates and Fluo silicates.
The formation of silicon fluoride by the action of hydrofluoric acid or a fluoride and sulphuric acid upon a silicate is often applied to the detection of silica, the silicon fluoride giving with water a white precipitate of silicic acid. The usual proce- dure in making this test is to allow the gaseous silicon fluoride to come in contact with a moistened glass rod, but the condensa- tion of steam or sulphuric acid on the rod of...ten makes the results uncertain. Browningf has found that when moistened black paper is brought in contact with the fumes of the gaseous fluoride the deposit of silica is very easily detected. According to the procedure recommended, the reaction is made to take place in a small lead cup about one centimeter in diameter and depth, made by running the melted metal into a mold, covered by a flat piece of lead with a small hole in the center, as shown in Fig. 20. Into Flg - 20> this cup is put the fluosilicate, or the silicate with a small amount of finely powdered calcium fluoride, generally about o.
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You can find similar books in the "Read Also" column, or choose other free books by Frank Austin Gooch to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
SILICON. The Detection of Silicon in Silicates and Fluo silicates.
The formation of silicon fluoride by the action of hydrofluoric acid or a fluoride and sulphuric acid upon a silicate is often applied to the detection of silica, the silicon fluoride giving with water a white precipitate of silicic acid. The usual proce- dure in making this test is to allow the gaseous silicon fluoride to come in contact with a moistened glass rod, but the condensa- tion of steam or sulphuric acid on the rod of...ten makes the results uncertain. Browningf has found that when moistened black paper is brought in contact with the fumes of the gaseous fluoride the deposit of silica is very easily detected. According to the procedure recommended, the reaction is made to take place in a small lead cup about one centimeter in diameter and depth, made by running the melted metal into a mold, covered by a flat piece of lead with a small hole in the center, as shown in Fig. 20. Into Flg - 20> this cup is put the fluosilicate, or the silicate with a small amount of finely powdered calcium fluoride, generally about o.
What to read after Methods in Chemical Analysis Originated Or Developed in the Kent Chemical Labor?
You can find similar books in the "Read Also" column, or choose other free books by Frank Austin Gooch to read onlineMoreLess
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