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CAS NO.92-87-5
| Benzidine Basic information |
| Product Name: | Benzidine |
| Synonyms: | (1,1’-Biphenyl)-4,4’-diamine;[1,1’-biphenyl]-4,4’-diamine;[1,1'-Biphenyl]-4,4'-diamine;4,4’-bianiline;4,4’-biphenylenediamine;4,4’-diamino-bipheny;4,4’-diaminodiphenyl;4,4’-diphenylenediamine |
| CAS: | 92-87-5 |
| MF: | C12H12N2 |
| MW: | 184.24 |
| EINECS: | 202-199-1 |
| Product Categories: | Intermediates of Dyes and Pigments;Azo dye;Amines;Aromatics;Method 8270More...Close...;8000 Series Solidwaste Methods;Analytical Standards;AromaticsChemical Class;AromaticsMethod Specific;BenzidinesEPA;Chemical Class;A-BMethod Specific;Aryl Amines MAK III, Category 1Alphabetic;Alpha Sort;B;BA - BHEnvironmental Standards;Benzidines;Oeko-Tex Standard 100;Volatiles/ Semivolatiles |
| Mol File: | 92-87-5.mol |
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| Benzidine Chemical Properties |
| mp | 127-128 °C |
| bp | 402°C |
| density | 1.25 |
| Fp | 11 °C |
| storage temp. | 2-8°C |
| Water Solubility | Sparingly soluble. <0.1 g/100 mL at 22 ºC |
| Merck | 13,1077 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 92-87-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzidine(92-87-5) |
| EPA Substance Registry System | [1,1'-Biphenyl]- 4,4'-diamine(92-87-5) |
| Safety Information |
| Hazard Codes | T,N,F,Xn |
| Risk Statements | 45-22-50/53-52/53-39/23/24/25-23/24/25-11-36/37/38-20/21/22-51/53-67 |
| Safety Statements | 53-45-60-61-36/37-16-7-36-26 |
| RIDADR | UN 1885 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | DC9625000 |
| F | 8 |
| HazardClass | 6.1(a) |
| PackingGroup | II |
| Hazardous Substances Data | 92-87-5(Hazardous Substances Data) |
| Benzidine Usage And Synthesis |
| Chemical Properties | Off-White Solid |
| Usage | Potentially mutagenic compound. |
| General Description | A grayish-yellow to grayish-red, crystalline solid. Toxic by ingestion, inhalation, and skin absorption. Combustion produces toxic oxides of nitrogen. Used to make other chemicals and in chemical and biological analysis. |
| Air & Water Reactions | Darkens on exposure to air and light. Soluble in hot water. |
| Reactivity Profile | Benzidine forms insoluble salts with sulfuric acid. Can be diazotized, acetylated and alkylated. Is hypergolic with red fuming nitric acid . Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. |
| Health Hazard | Poisonous if inhaled, swallowed or absorbed through skin. May cause contact dermatitis, irritation or sensitization. Ingestion may cause nausea and vomiting. |
| Benzidine Preparation Products And Raw materials |
| Raw materials | 1,2-Diphenylhydrazine-->Benzidine dihydrochloride |
| Preparation Products | Direct Red 28-->Direct Black 38-->ACID ORANGE 63-->N,N'-BISBENZYLIDENEBENZIDINE-->Acid Red 111-->C. I. Pigment Red 62-->Acid Yellow 44-->Direct Black BH-->ACID RED 114-->Acid Yellow 42-->CI NO 22610-->ACID RED 97 (C.I. 22890)-->3,3'-Diaminobenzidine |
| Chemical Name: | 4-(4-aminophenyl)benzenamine |
| Cas No.: | 92-87-5 |
| Molecular Formula: | C12H12N2 |
| Molecular Weight: | 184.24 |
| Specification: | 98% |
| Molecular Structure: |
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