Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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2,6-Diamino-1-methylbenzene(823-40-5)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2,6-Diamino-1-methylbenzene
Synonyms
1,3-Diamino-2-methylbenzene
2-Methyl-1,3-benzenediamine
2-Methyl-m-phenylenediamine
CAS
823-40-5
Formula
C7H10N2
Molecular Weight
122.19
EINECS
212-513-9
RTECS
XS9750000
RTECS Class
Mutagen
Beilstein/Gmelin
2079476
Beilstein Reference
3-13-00-00291
EC Index Number
612-151-00-5
EC Class
Mutagenic Category 3; Harmful; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance
Prisms from benzene or water.
Solubility in water
Very soluble
Melting Point
113
Boiling Point
280 - 282
Vapor Pressure
0.003 (25 C)
pKa/pKb
9.26 (pKb)
Partition Coefficient
-.36
Heat Of Vaporization
52.3 kJ/mol
Usage
Chemical intermediate for toluene diisocyanate, polyether polyols, rubber chemicals, curing agent for epoxy resins, monomer, chain extender & crosslinker for polymers (mixt with 2,4-isomer), chemical intermediate for dyes.

First Aid Measures

Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation
Remove from exposure to fresh air immediately.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.

Handling and Storage

Storage
Storage location should be close to laboratory where it is to be used, so that only small amounts need to be transported. Carcinogens should be kept in only one section of storage area, explosion-proof refrigerator or freezer as required. The area should be appropriately labeled. An inventory should be kept showing the quantity of carcinogen and date it was acquired. Facilities for dispensing should be contiguous to storage area.
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

Inhalation
Dyspnea and tachypnea may occur.
Skin
Central cyanosis unresponsive to oxygen therapy is classic.
Eyes
Redness, pain.
Ingestion
Nausea and vomiting may occur.
Hazards
Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 21/22 43 51/53 68
EC Safety Phrase
S 24 36/37 61
UN (DOT)
2811

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Exposure Effects
CNS effects include headache, dizziness, altered mental status, confusion (lethargy progressing coma), seizures, syncope; occur secondary to CNS hypoxia, usually with levels > 20%.
Exposure limit(s)
NIOSH: Potential Occupation al Carcinogen.

Fire Fighting Measures

Flash Point
148
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire Potential
This material is probably combustible.

Accidental Release Measures

Small spills/leaks
Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents - strong acids.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2811
Hazard Class
6.1
Packing Group
I; II; III
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