CAS 92-87-5 Benzidine powder

Benzidine is a white, greyish-yellow, or slightly reddish crystalline solid or powder. The major use for benzidine is in the production of dyes, especially azo dyes in the leather, textile, and paper industries and as a synthetic precursor in the preparation and manufacture of dyestuffs. It is also used in the manufacture of rubber, as a reagent, and as a stain in microscopy. It is slightly soluble and slowly changes from a solid to a gas.It appears as white or light pink crystalline powder with a melting point of 125 ℃, the boiling point of 400 ℃, (98.7kPa) and the relative density of 1.250 (20/4 ℃). It is soluble in boiling ethanol, acetic acid and diluted hydrochloric acid, slightly soluble in ether, slightly soluble in boiling water and slightly soluble in cold water. Its color is darkened under air and light. Analysis reagents are usually benzodine hydrochloride or acetate, which is more soluble, and sulfate is commonly used in the industry. Benzidine acetate is white or nearly white crystals, being soluble in water, acetic acid and hydrochloric acid, as an indicator. 

Important dye intermediates, benzidine and its derivatives can be used to make direct dyes, acid dyes, vat dyes, ice dyed dyes, sulfur dyes, reactive dyes and organic pigments. More than 250 dyes are made from benzidine, of which the most important is the direct black EW. The benzidine yellow is a widely used organic pigment.

Benzidine was used extensively in the manu facture of dyes. Because of its cancer-causingeffects in humans, its application in dyes hasbeen curtailed. Other uses of this compoundare in chemical analysis: as a reagent for thedetermination of hydrogen peroxide in milkand in the analysis of nicotine. Its hydrochlo ride is used as a reagent to analyze metalsand sulfate.

Ons het baie fabrieke van hoë gehalte met diep samewerking, wat u produkte van hoë gehalte en mededingende pryse kan voorsien. En ons kan ook afslag gee vir grootmaat aankope. En ons werk saam met baie professionele vragversending maatskappye, kan produkte veilig en glad aan jou hande lewer. Afleweringstyd is ongeveer 3-20 dae na bevestiging van betaling.

Product Name:	Benzidine
Synonyms:	[1,1'-Biphenyl]-4,4'-diamine;4,4’-bianiline;4,4’-biphenylenediamine;4,4’-diamino-bipheny;4,4’-diaminodiphenyl;benzydyna(polish);biphenyl -4,4'-ylenediamine;Biphenyl,4,4'-diamino-
CAS:	92-87-5
MF:	C12H12N2
MW:	184.24
EINECS:	202-199-1
Product Categories:	Intermediates of Dyes and Pigments
Mol File:	92-87-5.mol

1. Is jy 'n fabriek of 'n handelsmaatskappy?
Ons is 'n maatskappy wat industrie en handel integreer, wat eenstopdiens lewer. OEM kan aanvaar word.

2. Verskaf u monsters? Is dit gratis of ekstra?
Gratis monsters. Die monster se vragfooi moet aan jou kant betaal word.

3. Het u enige sertifikate wat verband hou met gehaltebeheer?
ISO 9001:2008-sertifisering om kwaliteit te verseker.

4. Wat moet ek verskaf om 'n kwotasie te kry?
Stel ons asseblief in kennis van die produktipe wat u benodig, bestelhoeveelheid, adres en spesifieke vereistes. Die kwotasie sal betyds vir u verwysing gemaak word.

5. Watter soort betaalmetode verkies jy? Watter soort terme word aanvaar?
Aanvaarde afleweringsbepalings: FOB, CFR, CIF, EXW;
Accepted Payment Currency:USD;EUR
Aanvaarde tipe betaling: T/T, Western Union; Paypal, Handelsversekering.
Gesproke taal: Engels.