1,1-DIPHENYLHYDRAZINE

1,1-DIPHENYLHYDRAZINE 속성

1,1-DIPHENYLHYDRAZINE C화학적 특성, 용도, 생산

개요

Diphenylhydrazine is a man-made chemical that occurs in two isomeric forms: 1,1-diphenylhydrazine and 1,2-diphenylhdrazine. Diphenylhydrazine is produced by the reduction of nitrobenzene. Little or no information is available for 1,1-diphenylhydrazine. Most toxicological and use data pertain to 1,2-diphenylhydrazine.

용도

Previously, 1,2-diphenylhydrazine was used for producing benzidine that was used in the synthesis of benzidine-based dyes. However, these dyes are no longer produced in the United States. The primary use of 1,2-diphenylhydrazine is in the production of the anti-inflammatory agent phenylbutazone and sulfinpyrazone, a uricosuric agent.

일반 설명

Yellow crystals. Insoluble in water.

공기와 물의 반응

Insoluble in water.

반응 프로필

Toxic gases may be formed by mixing 1,1-DIPHENYLHYDRAZINE with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

환경귀착

Definitive information regarding the environmental fate and behavior of diphenylhydrazine in environmental media is extremely limited. No information is available affirming persistence of diphenylhydrazine in the environment or definitive pathways for its degradation. The low vapor pressure of diphenylhydrazine precludes it being a significant air contaminant. Diphenylhydrazine may be moderately absorbed into soil but it would be quickly oxidized to azobenzene. The half-life of diphenylhydrazine in water is reportedly less than 15 min and is likely due to its oxidation to azobenzene and benzidine.

Purification Methods

Purify it via the hydrochloride [530-47-2], which has m 165-170o(dec) after crystallization from aqueous EtOH (+ a few drops of HCl) and recover the free base with aqueous NaOH, extract it into Et2O, dry it (KOH), filter, evaporate and distil the residue under a vacuum. The distillate crystallises on cooling. The benzoyl derivative has m 194o (from Me2CO), and the 4-nitrophenyl hydrazone (with the aldehyde) has m 131-132o. [Koga & Anselme J Org Chem 33 3963 1968, Beilstein 15 IV 55.]

1,1-DIPHENYLHYDRAZINE 준비 용품 및 원자재

원자재

준비 용품

1,1-DIPHENYLHYDRAZINE 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
LEAPCHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	43348	58
Aladdin Scientific	+1-833-552-7181	sales@aladdinsci.com	United States	57511	58
Aladdin Scientific	+1-833-552-7181	sales@aladdinsci.com	United States	52927	58
Mainchem Co., Ltd.	+86-0592-6210733	sale@mainchem.com	China	32360	55
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006608290; 18621169109	market03@meryer.com	China	40241	62
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24539	81
Energy Chemical	021-021-58432009 400-005-6266	sales8178@energy-chemical.com	China	44751	61
TOKYO CHEMICAL INDUSTRY CO., LTD.	03-36680489	Sales-JP@TCIchemicals.com	Japan	28398	80

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