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.

Kami memiliki banyak pabrik berkualitas tinggi dengan kerja sama yang mendalam, yang dapat memberi Anda produk berkualitas tinggi dan harga yang kompetitif. Dan kami juga dapat memberikan diskon untuk pembelian dalam jumlah besar. Dan kami bekerja sama dengan banyak perusahaan ekspedisi profesional, dapat mengirimkan produk dengan aman dan lancar ke tangan Anda. Waktu pengiriman sekitar 3-20 hari setelah konfirmasi pembayaran.

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. Apakah Anda pabrik atau perusahaan dagang?
Kami adalah perusahaan yang mengintegrasikan industri dan perdagangan, menyediakan layanan satu atap. OEM dapat diterima.

2. Apakah Anda menyediakan sampel? Apakah gratis atau ekstra?
Sampel gratis. Biaya pengiriman sampel harus dibayar di sisi Anda.

3. Apakah Anda memiliki sertifikat terkait kendali mutu?
Sertifikasi ISO 9001:2008 untuk menjamin kualitas.

4. Apa yang harus saya berikan untuk mendapatkan penawaran?
Mohon informasikan kepada kami tentang jenis produk yang Anda butuhkan, jumlah pesanan, alamat, dan persyaratan spesifik. Kutipan akan dibuat untuk referensi Anda tepat waktu.

5. Metode pembayaran apa yang Anda sukai? Persyaratan apa yang diterima?
Ketentuan Pengiriman yang Diterima: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD;EUR
Jenis Pembayaran yang Diterima: T/T,Western Union; Paypal, Jaminan Perdagangan.
Bahasa yang Digunakan: Bahasa Inggris.