By the action of chlorine upon chloride of methyl there are succes sively produced chloride of chlormethyl (C,110, Cl), chloride of bichlormethyl (chloroform) (0,11 C1„121), and chloride of percldormethyl (C,C1„ Cl). The latter is identical with bichloride of carbon. Chiorick of nitro-perchlormethyl (C,CL(NO,), CI) is CULOROPICR1NE.
Bromide of methyl (C,I4,Er) is made by a similar Method to bromide of ETH YL. Its specific gravity is 1'664; boiling point about 55° Fahr. Bromide of bibrom-methyl (C,HBr„ Br), or bromoform, is produced by the simultaneous action of caustic potash and bromine upon wood.spirit, alcohol, or acetone. The bromide of nitre-perbront-methyl (C,Br,(NO,) Br) is bromopicrine.
Iodide of methyl (C,H,I) is made in the same way as, and much resembles, iodide of ethyl. Its specific gravity at 72° Fahr. is Boil ing point between 105° and 120°. From iodide of methyl there are obtained by substitution processes the following compounds :--Iodide of bichlormethyl (C,HCI„ 1) or CLILORIODOFORM ; Iodide of bibront-methyl (C,H Br„ I), or BROMIODOEORM ; Iodide of bi-iod-sacthyl (C,H I,, I), or IODOFOR1L By distilling iodoform with sulphide of mercury, Bou chardat has obtained an oily body which he calls aulphoform, but it has not yet been thoroughly investigated. A cyanide of bi-iod-methyl (C,11 1,,Cy) has also been described.
Nitrides of methyl. [ORoeNzo Bests.] Cyanide of methyl (0,11, Cy), Acetonitrile or arelonitry1.—Prepared
by distillation, from a mixture of sulphomethylate of potash and cyanide of potassium. Boiling point 170".6 Fahr. Cyanide of tri chlormethyl (C,C1,Cy) is identical with chloracelonttrile.
Carbonate of methyl C.0,) has not been prepared, but methylcarbonic acid or carbemethylic acid HO,C,0,) in the state of a baryta salt (C,11,0, BaO, C,0,) is precipitated when carbonic acid is passed through a solution of baryta in wood spirit.
Metallic methidea.—This series of bodies is not quite so complete as the corresponding series of [ETHYL.] They are in nearly all cases produced by methods similar to those for obtaining the respective metallic ethides. For a description of them, see OHOANO-METALLIO BIODIES.
Methyl-haryl C,H„) Methylide of hexyl.—This is a double alcohol radicle, _containing methyl, united with hexyl—the radical of CAPROIO ALCOHOL. Its boiling point is 179'6 (1) Fehr., and its vapour density 3.426.
Methylene (C,H,) is a gaseous body, obtained on palming chloride of methyl through a red-hot porcelain tube, hydrochloric acid being produced at the same time. It cannot, like ethylene, be formed by the action of hot concentrated sulphuric acid on the alcohol.
The following are the names and formulas of the remaining more important compounds of methyl. Those containing nitrogen will be described in detail under ()Room° BASES.