| Product Identification | Back to Contents | 【Product Name】
2-Methyl-1,4-benzenediamine | 【Synonyms】
2,5-Diaminotoluene
2-Methylbenzene-1,4-diamine
2-Methyl-para-phenylenediamine
4-Amino-2-methylaniline
para-Toluenediamine
Toluene-2,5-diamine | 【CAS】
95-70-5 | 【Formula】
C7H10N2 | 【Molecular Weight】
122.19 | 【EINECS】
202-442-1 | 【RTECS】
XS9700000 | 【RTECS Class】
Tumorigen; Mutagen; Primary Irritant | 【Beilstein/Gmelin】
774521 | 【Beilstein Reference】
4-13-00-00246 | 【EC Index Number】
612-125-00-3 | 【EC Class】
Toxic; Harmful; Sensitising; Dangerous for the Environment |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Plates from benzene. | 【Solubility in water】
Soluble | 【Melting Point】
150 - 155 | 【Boiling Point】
273 | 【Vapor Pressure】
0.006 (25 C) | 【pKa/pKb】
7.83 (pKb) | 【Partition Coefficient】
.25 | 【Heat Of Vaporization】
51.2 kJ/mol | 【Usage】
Intermediate in prodn of two dyes, ci basic red 2 & ci acid brown 103, in hair dyes. |
| First Aid Measures | Back to Contents | 【Ingestion】
Do not induce emesis. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. | 【Inhalation】
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. | 【Skin】
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. | 【Eyes】
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility. |
| Handling and Storage | Back to Contents | 【Storage】
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage. | 【Handling】
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood. |
| Hazards Identification | Back to Contents | 【Inhalation】
Bronchospasm may develop in sensitized individuals. | 【Skin】
Contact dermatitis is common. | 【Eyes】
Significant laryngeal and facial edema may occur. Breathing may be impaired as a result of laryngeal edema. Immediate (usually) or delayed hypersensitivity reactions have been described following application of PPD-containing hair dyes to eyebrows or eyelashes. Eye pain and burning, and edema occur, which may progress to widespread facial edema, dermatitis, tearing, photophobia, uveitis, and keratitis. Corneal necrosis and vision loss may occur. Bilateral optic neuritis has been reported with blindness. | 【Ingestion】
Epigastric pain and recurrent vomiting are common shortly following ingestion. | 【Hazards】
Contact with metals may evolve flammable hydrogen gas. | 【UN (DOT)】
3259 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Wear appropriate protective gloves, clothing and goggles. | 【Respirators】
Wear positive pressure self-contained breathing apparatus (SCBA). | 【Exposure Effects】
Abnormally low blood pressure and labored respirations may occur. CNS depression and peripheral neuropathy have been reported after ingestion. |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
140 | 【Fire Fighting】
DOT recommendations-for small fires, use dry chemicals, carbon dioxide, water spray, or foam. For large fires, use water spray, fog, or foam. If you can do it without risk, move containers from fire area. | 【Fire Potential】
Burns but does not ignite readily. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. |
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| Company Name: | J & K SCIENTIFIC LTD. |
| Tel: | 400-666-7788 +86-10-82848833 |
| Fax: | +86-10-82849933 |
| WebSite: | www.jkchemical.com |
| Company Name: | China Langchem Inc. |
| Tel: | 0086-21-58956006,021-58950017;021-38701807 |
| Fax: | 0086-21-58956100 |
| WebSite: | www.langchem.com |
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