3,3'-디클로로-4,4'-디아미노바이페닐

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H312：피부와 접촉하면 유해함

  H317：알레르기성 피부 반응을 일으킬 수 있음

  H350：암을 일으킬 수 있음 (노출되어도 암을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재)

  H410：장기적 영향에 의해 수생생물에 매우 유독함

• 예방조치문구

  P201：사용 전 취급 설명서를 확보하시오.

  P202：모든 안전 조치 문구를 읽고 이해하기 전에는 취급하지 마시오.

  P273：환경으로 배출하지 마시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P308+P313：노출 또는 접촉이 우려되면 의학적인 조치· 조언를 구하시오.

3,3'-디클로로-4,4'-디아미노바이페닐 MSDS

• 3,3'-Dichlorobenzidine

3,3'-디클로로-4,4'-디아미노바이페닐 화학적 특성, 용도, 생산

• 화학적 성질

  colourless to white crystalline solid

• 물리적 성질

  Colorless to grayish-purple needles or crystals with a mild or pungent odor

• 용도

  Intermediate in the manufacture of azo dyes and pigments for printing inks, textiles, paints, plastics, and crayons; curing agent for isocyanate-terminated polymers and resins; rubber compounding ingredient; analytical determination of gold; formerly used as chemical intermediate for direct red 61 dye.

• 일반 설명

  Gray to purple crystalline powder. Insoluble in water. Very toxic. Used in the dye industry, curing agent for isocyanate terminated resins.

• 공기와 물의 반응

  Insoluble in water.

• 반응 프로필

  A halogenated amine. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.

• 건강위험

  3,3'-Dichlorobenzidine (DCB) is carcinogenic in several animal species.

• 화재위험

  Combustible.

• Safety Profile

  Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Human mutation data reported. When heated to decomposition it emits very toxic fumes of Cl and NOx.

• 잠재적 노출

  A halide-and amine-substituted aromatic compound used in the dye industry, curing agent for isocyanate terminated resins. The major uses of dichlorobenzidine are in the manufacture of pigments for printing ink, textiles, plastics, and crayons and as a curing agent for solid urethane plastics. There are no substitutes for many of its uses. Additional groups that may be at risk include workers in the printing or graphic arts professions handling the 3,3’-DCB-based azo pigments. 3,3’-DCB may be present as an impurity in the pigments, and there is some evidence that 3,3’-DCB may be metabolically liberated from the azo pigment

• Carcinogenicity

  Studies in several test systems have shown DCB to be genotoxic in vitro and in vivo and suggest that this effect most likely mediates the carcinogenicity of the chemical. In vitro, DCB has induced sister chromatid exchanges, unscheduled DNA synthesis, and positive responses in bacterial Salmonella assays; in vivo DCB induced micronuclei in polychromatic erythrocytes in male mice and fetuses.
  Because of demonstrated potent carcinogenicity in multiple animal species, evidence of genotoxicity, and structural relationship to the known bladder carcinogen benzidine, DCB should be regarded as a probable human carcinogen and exposure by any route should be avoided.
  3,3￠-Dichlorobenzidene has no threshold limit value (TLV) exposure limit and is classified as an A3, confirmed animal carcinogen with unknown relevance to humans, and a notation for skin absorption.

• 운송 방법

  UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

• Purification Methods

  Crystallise the benzidine from EtOH, pet ether (m 133o) or *benzene. [Beilstein 13 H 234, 13 I 67, 13 II 106, 13 III 477, 13 IV 384.] CARCINOGEN.

• 비 호환성

  Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides. Achemical base: neutralize acids to form salts plus water with an exothermic reaction. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generatedby amines in combination with strong reducing agents such as hydrides, nitrides, alkali metals, and sulfides.

• 폐기물 처리

  Incineration (816C, 0.5 second for primary combustion; 1204C, 1.0 second for secondary combustion). The formation of elemental chlorine can be prevented through injection of steam ormethane into the combustion process. nitrogen oxides may be abated through the use of thermal or catalytic devices. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal

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