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| CAS No.: | 624-18-0 |
|---|---|
| Name: | p-Phenylenediamine dihydrochloride |
| Molecular Structure: | |
|
|
|
| Formula: | C6H10Cl2N2 |
| Molecular Weight: | 181.065 |
| Synonyms: | 1,4-Benzenediamine,dihydrochloride (9CI);p-Phenylenediamine, dihydrochloride (8CI);1,4-Phenylenediamine dihydrochloride;1,4-Benzenediamine,hydrochloride (1:2);C.I. Oxidation Base 10A;Durafur Black RC;Fourrine 64;Fourrine DS;Pelagol CD;Pelagol Grey CD; |
| EINECS: | 210-834-9 |
| Density: | 1.15 g/cm3 |
| Melting Point: | >200 °C |
| Boiling Point: | 267.4 °C at 760 mmHg |
| Flash Point: | 135.9 °C |
| Solubility: | >=10 g/100 mL at 21 °C in water |
| Appearance: | Off-white crystal powder |
| Hazard Symbols: |
 T,  N
|
| Risk Codes: | 23/24/25-36-43-50/53 |
| Safety: | 28-36/37-45-60-61-28A |
| Transport Information: | UN 1673 6.1/PG 3 |
| PSA: | 52.04000 |
| LogP: | 3.61740 |
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Chemistry
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IUPAC Name: Benzene-1,4-diamine dihydrochloride
Molecular Formula: C6H10Cl2N2
Molecular Weight: 181.06 g/mol
Canonical SMILES: c1(ccc(N)cc1)N.Cl.Cl
InChI: InChI=1/C6H8N2.2ClH/c7-5-1-2-6(8)4-3-5;;/h1-4H,7-8H2;2*1H
EINECS: 210-834-9
Classification Code: Mutation data; Tumor data
Product Categories: Intermediates of Dyes and Pigments
Stability: Stable. Incompatible with acids, strong oxidizing agents.
H-Bond Donor: 4
H-Bond Acceptor: 2
Density: 1.15 g/cm3
Flash Point: 135.9 °C
Enthalpy of Vaporization: 50.54 kJ/mol
Boiling Point: 267.4 °C at 760 mmHg
Melting Point: >200 °C
Water Solubility: >=10 g/100 mL at 21 °C
Vapour Pressure of 1,4-Diaminobenzene dihydrochloride (CAS NO.624-18-0): 0.00817 mmHg at 25 °C
Uses
1,4-Diaminobenzene dihydrochloride (CAS NO.624-18-0) is commonly used as the developers for black-and-white & color photography, analytical reagent, antioxidants,etc.
Toxicity Data With Reference
| 1. | mma-sat 33,300 ng/plate | ENMUDM Environmental Mutagenesis. 7 (Suppl 5)(1985),1. | ||
| 2. | mma-esc 333 µg/plate | ENMUDM Environmental Mutagenesis. 7 (Suppl 5)(1985),1. | ||
| 3. | orl-rat LD50:147 mg/kg | NCILB* Progress Report for Contract No. NIH-NCI-E-C-72-3252, Submitted to the National Cancer Institute by Litton Bionetics, Inc. (Bethesda, MD) NIH-NCI-E-C-72-3252 . | ||
| 4. | orl-mus LD50:316 mg/kg | NCILB* Progress Report for Contract No. NIH-NCI-E-C-72-3252, Submitted to the National Cancer Institute by Litton Bionetics, Inc. (Bethesda, MD) NIH-NCI-E-C-72-3252 . | ||
| 5. | scu-mus LDLo:50 mg/kg | XPHBAO U.S. Public Health Service, Public Health Bulletin. 271 (1941),42. | ||
| 6. | scu-dog LDLo:10 mg/kg | XPHBAO U.S. Public Health Service, Public Health Bulletin. 271 (1941),42. | ||
| 7. | scu-rbt LDLo:20 mg/kg | XPHBAO U.S. Public Health Service, Public Health Bulletin. 271 (1941),42. | ||
| 8. | scu-frg LDLo:10 mg/kg | XPHBAO U.S. Public Health Service, Public Health Bulletin. 271 (1941),42. |
Consensus Reports
IARC Cancer Review: Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 16 ,1978,p. 125.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NCI Carcinogenesis Bioassay (feed); No Evidence: mouse, rat NCITR* National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-174 ,1979. . Reported in EPA TSCA Inventory.
Safety Profile
Poison by ingestion and subcutaneous routes. Questionable carcinogen. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and HCl. Used as an analytical reagent.
Hazard Codes: 
T, 
N
Risk Statements: 23/24/25-36-43-50/53
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
R36: Irritating to eyes.
R43: May cause sensitization by skin contact.
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 36/37-45-60-61-28
S28: After contact with skin, wash immediately with plenty of soap-suds.
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S60: This material and its container must be disposed of as hazardous waste.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 1673 6.1/PG 3
WGK Germany: 3
RTECS: ST0350000
HazardClass: 6.1
PackingGroup of 1,4-Diaminobenzene dihydrochloride (CAS NO.624-18-0): III
Specification
1,4-Diaminobenzene dihydrochloride (CAS NO.624-18-0), its Synonyms are 1,4-Benzenediamine hydrochloride ; 1,4-Phenylenediamine hydrochloride ; p-Phenylenediamine HCl ; p-Phenylenediamine hydrochloride ; 4-Aminoaniline dihydrochloride ; CI Oxidation Base 10A ; Durafur Black RC ; Phenylenediamine dihydrochloride . It is off-white crystal powder.