CAS 92-87-5 Benzidine powder

CAS 92-87-5 Benzidine powder

Ürün adı:
CAS 92-87-5 Benzidine powder
Seviye:
Pharmaceutical grade
Özellikler:
Beyaz toz
Paketleme:
25kg/varil
Adedi:
1 kilo
Depolamak:Serin Kuru Yer
Raf ömrü:2 yıl

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Detaylar

Etiketler

Ürün Açıklaması

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.

Başvuru

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.

Avantajları

Size yüksek kaliteli ürünler ve rekabetçi fiyatlar sağlayabilecek, derin işbirliğine sahip birçok yüksek kaliteli fabrikamız var. Ayrıca toplu alımlarda indirim de yapabiliyoruz. Ayrıca birçok profesyonel nakliye firmasıyla işbirliği yaparak ürünleri güvenli ve sorunsuz bir şekilde elinize ulaştırabiliyoruz. Teslim süresi ödeme onaylandıktan sonra yaklaşık 3-20 gündür.

Şartname

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

Benzidine Chemical Properties

Erime noktası	127-128 °C
Kaynama noktası	402°C
yoğunluk	1.25
buhar basıncı	Based on the specific vapor density value of 6.36 (Sims et al., 1988), the vapor pressure wascalculated to be 0.83 at 20 °C.
kırılma indisi	1.6266 (estimate)
Fp	11 °C
depolama sıcaklığı	2-8°C
çözünürlük	Soluble in ethanol (U.S. EPA, 1985) and ether (1 g/50 mL) (Windholz et al., 1983)
pka	4.66(at 30℃)
renk	Grayish-yellow, crystalline powder; white or sltlyreddish crystals, powder
Suda Çözünürlük	Sparingly soluble. <0.1 g/100 mL at 22 ºC
Merck	13,1077
BRN	742770
Henry's Law Constant	(x 10^-11 atm?m³/mol): 3.88 at 25 °C (estimated, Howard, 1989)
Exposure limits	Because it is a carcinogen and readily absorbed through skin, no TLV has been assigned. Exposure should be at an absolute minimum. Recognized Human Carcinogen (ACGIH); Human Carcinogen (MSHA); Carcinogen (OSHA); Human Sufficient Evidence, Animal Sufficient Evidence (IARC).
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey	HFACYLZERDEVSX-UHFFFAOYSA-N
CAS DataBase Reference	92-87-5(CAS DataBase Reference)
NIST Chemistry Reference	Benzidine(92-87-5)
IARC	1 (Vol. 29, Sup 7, 99, 100F) 2012
EPA Substance Registry System	Benzidine (92-87-5)

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