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Lead protoxide, PbO, obtained as a yellow amorphous powder, the fused and crystalline form of which is called litharge; lead ocher. It is used as a pigment.

A white, amorphous, tenacious substance resembling caoutchouc, and obtained as an insoluble residue of mastic.

or aniline, dyes. It consists of the sulphate of mauveïne, and is a dark brown or bronze amorphous powder, which dissolves to a beatiful purple color. Called also aniline purple, violine, etc.

An alkaloid found in opium, and extracted as a yellow amorphous substance which is easily decomposed.

A white, amorphous, insoluble substance regarded as a polymeric variety of chloral.

formerly called antimonic acid) analogous to metaphosphoric acid, and obtained as a white amorphous insoluble substance, (HSbO3).

nnic acid), obtained, as an isomeric modification of stannic acid, in the form of a white amorphous substance.

A yellowish white, amorphous, nitrogenous substance found in wheat, rye, etc., and resembling gluten; -- formerly called also mucin.

A brown, amorphous, bitter substance having a strong emetic action, extracted from the root of the mudar.

found in the flowers of a plant (Murraya exotica) of South Asia, and extracted as a white amorphous slightly bitter substance.

A constituent of the nuclei of all cells. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur.

A reddish brown amorphous dyestuff,

Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing. Our orpiment and sublimed mercurie. Chauce…

ived from osmium, analogous to sulphurous acid, and forming unstable salts. It is a brown amorphous substance.

A polymeric modification of cyanogen, obtained as a brown or black amorphous residue by heating mercuric cyanide.

A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. It is obtained by lixiviating wood ashes, and evaporating the lye, and has been an important source of potassium compounds. It is used in making soap, glass, etc.

; specifically, designating an acid obtained from ordinary vegetable jelly (pectin) as an amorphous substance, tough and horny when dry, but gelatinous when moist.

An amorphous carbohydrate found in the vegetable kingdom, esp. in unripe fruits. It is associated with cellulose, and is converted into substances of the pectin group.

A sweet amorphous deliquescent substance obtained indirectly from benzene, and isometric with, and resembling, dextrose.

An inert amorphous white powder, PN2H, obtained by passing ammonia over heated phosphorus. [Spelt also phosphame.] -- Phos"pham"ic, a.