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STH diethyl amine for hromatogr. (3 ml) – Reaktivsnab, TOO | all.biz
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STH diethyl amine for hromatogr. (3 ml)

STH diethyl amine for hromatogr. (3 ml)

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STH diethyl amine for hromatogr. (3 ml)

C4H11N = (C2H6)2NH - secondary amino (see), represents colorless, easily mobile liquid with ammonia smell, ud. weight 0,717 (at 15 °), boiling at 56 °, at strong cooling stiffening (t. the square - 40-50 °) and easily water soluble with rezkoshchelochna reaction; its hydrochloric salt melts at 176 °, picrate - at 155 °. Turns out at effect of ammonia on C6H5Cl, C2H5Br, C2H5J or S2n5o3vmeste with mono - and triethylamine (see Amines). When receiving from the crude C6H5Cl which is formed as by-product at preparation of trichloracetaldehyde, D. makes the main mass of exit of amines. Their division is made by means of oxalic ether (see Ethylamine), and after department of ethyl oxamide, having driven away from filtratatrietilamina decomposing alkali received in the rest and washed out by water dietiloksaminovyyefir, receive free and pure D.:

C2H5.O2C.CO.N(C2H5)2 + 2KHO = K 2C2 O 4 + C2H5.OH + NH (C2H5.) 2.

Laboratories D. receive from nitrozodietilanilin No. C 6H4.N(C2H5)2 or dinitrodiethylaniline (NO 2) 2C6H3.N(C2H5)2, decomposing them boiling with alkali at what near D. are formed in the first case nitrozofenol, and in the second - dinitrophenol.

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STH diethyl amine for hromatogr. (3 ml)
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