Toch, Maximilian, 1864-1946, Toch, Maximilian, 1864-1946. Chemistry and technology of mixed paints · New York : D. Van Nostrand · leaf 140
137 THE INERT FILLERS AND EXTENDERS thicken it unduly. The defect produced by its incom- plete hydration will be to take up moisture from other No. 65. French Terra Alba.— Pho- No. 66. Terra Alba (French Gypsum) — tomicrograph X250, composition Photomicrograph x6oo, showmg crys- CaS04 + 2 H2O, same… … No. 68. Precipitated Calcium Sul- No. 67. Calcium Sulphate — Photo- phate— Photomicrograph X300. Note micrograph X300. Ppted. from cold, the long-fibred crystalHne structure. moderately concentrated solutions. Some of the gypsum sold in the east is made from alabaster, this being a native,…
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