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SOREL CEMENT

A strong binding, made by mixing calcined magnesia with concentrated solution of magnesium chloride which sets to a hard mass of the composition MgCl2, 5MgO,*HaO.

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SANITASFLUID

A product of the airoxidation of terpenes in the presence of water, containing hydrogen dioxide, thymol, and some soluble resinous substances; used as a nonpoisonous oxidizing and bleaching agent, antiseptic and disinfectant.

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SUBERIC ACID

4A member of the oxalic series of acids, originally obtained by the action of nitric acid upon cork, but easily prepared, similarly, from oleic acid or other fatty acids. It is a crystalline body which melts at 140 degrees C., dissolves readily in boiling water, and mixes with fixed oils. When strongly heated, it gives off suffocating vapouis.

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SALICYLIC ACID

COOH occurs natur ally in the blossom of Spiraa tdmaria and in combination in oii of wintergreen. It is a white, crystalline body, of meltingpoint 1590 C., and can be easily obtained by chemical methods from salicin, coumarin, phenol, and indigotin. It is little soluble in cold water, but readily soluble in alcohol, ether, and hot water; is a good antiseptic, and is much used medicinally. When heated with powdered glass or quicklime it breaks up into phenol and carbon dioxide.

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SALT OF SORREL

An acid potassium oxalate a mixture of KHC204 and KHC204 + Il2C204t2H20.

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STEATITE

A form of talc, slabs of which are often used tor making firestones in furnaces and stoves.

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SACCHARIC ACID

A product of the oxidation of cane sugar, glucose, starch, etc., by nitric acid. It is deliquescent and readily soluble in water.

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SEMI STEELS P.M.

A material possessing mechanical properties intermediate between those of cast iron and cast steel, of which filterpress plates and some autoclaves are constructed.

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SAVIN OIL

A nearly colourless, essential oil of sp.gr. ogi to 093 and optical rotation +40 degrees to +f>o degrees; soluble in alcohol and ether; distilled from the twigs and leaves of Jutiiperus sabina of Northern Asia and North America.

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SARSAPARILLAROOT

Contains, besides gum and starch, a peculiar substance known under several names, amongst others, sarsaparillin, which can be obtained in a c rystalline form from an alcoholic extract of the root. It is very soluble in water and a decoction of the root is used in medicine and in compounding what is known as a “soft drink” in the United States of America.

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