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CAS 92-87-5 Benzidine powder

CAS 92-87-5 Benzidine powder

 

  • 상품명:

    CAS 92-87-5 Benzidine powder

  • 등급:

    Pharmaceutical grade

  • 속성:

    백색 분말

  • 포장:

    25kg/드럼

  • MOQ:

    1 kilo

  • 저장:서늘하고 건조한 장소
  • 유효기간:2 년


세부

태그

제품 설명

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. 

애플리케이션

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.

장점

우리는 고품질의 제품과 경쟁력 있는 가격을 제공할 수 있는 깊은 협력을 바탕으로 많은 고품질 공장을 보유하고 있습니다. 또한 대량 구매 시 할인 혜택도 제공할 수 있습니다. 또한 많은 전문 화물 운송 회사와 협력하여 안전하고 원활하게 제품을 귀하의 손에 전달할 수 있습니다. 배송기간은 결제 확인 후 약 3~20일 정도 소요됩니다.

 

사양
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 Structure
 
Benzidine Chemical Properties
녹는점  127-128 °C
비등점  402°C
밀도  1.25
증기압  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.
굴절률  1.6266 (estimate)
Fp  11 °C
보관온도  2~8°C
용해도  Soluble in ethanol (U.S. EPA, 1985) and ether (1 g/50 mL) (Windholz et al., 1983)
pka 4.66(at 30℃)
색상  Grayish-yellow, crystalline powder; white or sltlyreddish crystals, powder
수용성  Sparingly soluble. <0.1 g/100 mL at 22 ºC
Merck  13,1077
브렌  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)

 

배송 및 결제


 

자주하는 질문

1. 당신은 공장입니까 아니면 무역 회사입니까?
우리는 원스톱 서비스를 제공하는 산업과 무역을 통합하는 회사입니다. OEM이 허용될 수 있습니다.

2. 샘플을 제공합니까? 무료인가요 아니면 추가인가요?
무료 샘플. 샘플의 운임은 귀하가 지불해야 합니다.

3. 품질관리 관련 인증서가 있나요?
ISO 9001:2008 인증으로 품질을 보장합니다.

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Pls는 귀하가 필요로 하는 제품 유형, 주문 수량, 주소 및 특정 요구 사항을 알려줍니다. 견적은 귀하의 참조를 위해 제 시간에 작성될 것입니다.

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사용언어:영어.

 

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