picrocyanIc

[Pref. picro-, and English cyanic.] Derived from or containing picric and cyanic acids. picrocyanic-acid, s. Chem.: C . I so purpuric acid, Picrocyamie acid. Unknown in the free state, but its pota ic salt, C KN5O6, is obtained by heating to 60° a mixture of two parts of pota ic cyanide and one part picric acid. It forms brownish-red scales of metallic green luster, insoluble in cold water. very soluble in hot water and in alcohol. In the dry state it explodes violently when heated. pic-rō-ě-ryth-rin, s. [Pref. picro-, and Eng. erythrin.] Chem.: C12H1607. A bitter crystalline body produced, together with orsellinic acid, by the action of boiling water on erythrin. It is soluble in water and alcohol, sparingly in ether, and when boiled with lime water is converted into carbonic acid, orcin, and erythrite. pic-ro-fiû-ite, s. [Prefix picro-; Eng. flu (or); and suff. -ite ( Min.).] Min.: An amorphous mineral, with a dull, greasy luster. Two analyses yielded varying amounts of silica, with protoxide of iron, magnesia, lime. water, and fluorine. Found at Lupikko, Finland. Dana suggests that it is probably a mixture. pic-ro-gly-çi-on, s . [Prefix picro- : English glycerine), and suff. -ion.] [DULCAMARIN.] pic-rô-li-chen-in, s . [Pref. picro- , and English lichenin.] Chemistry: A colorle , crystalline substance extracted from Variolar i a amara by alcohol. It is inodorous, very bitter, permanent in the air, specific gravity 1'176°, and melts at 100%; is insoluble in cold, slightly soluble in boiling water, very soluble in alcohol, ether, volatile oils, and carbon disul. phide. The alcoholic solution has an acid reaction. pic-ro-lite, s. [Pref. picro- , and Gr. lithos =a stone; Ger. picrolit .] Min.: A variety of Serpentine (q. v.), occurring a es of columnar fibers, somewhat rigid, and in ma es not easily flexible. Colors various. pic-rō-mer-ide, s . [PIC ROME RITE.] pic-rō-mer-ite, pic-rō-mer-ide, subst . [Pref. picro-; Gr. meros a part, and suff. -ite , -ide ( Min .); Ger. picromerit .] Min .: A monoclinic mineral, occurring as crystals and crystalline incrustations. Hardne , 2.5; color, white. Composition: Sulphuric acid, 39.8; magnesia, 9.9; potash, 23.5; water, 26'8=100, correspond. ing with the formula, KOSO3+MgOSO3+6HО. Found in the crater of Vesuvius with other sublimed products after the eruption of 1855. Also found at the Sta furth salt mine.