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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C.I. 37230(119-93-7)

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
C.I. 37230
Synonyms
3,3'-Dimethyl-(1,1'-biphenyl)-4,4'-diamine
3,3'-Dimethylbenzidine
4-(4-Amino-3-methylphenyl)-2-methylaniline
4,4'-Bi-o-toluidine
Bianisidine
CAS
119-93-7
Formula
C14H16N2
Molecular Weight
212.29
EINECS
204-358-0
RTECS
DD1225000
RTECS Class
Tumorigen; Mutagen
Merck
12,9651
Beilstein/Gmelin
2210640
Beilstein Reference
4-13-00-00419
EC Index Number
612-041-00-7
EC Class
Carcinogenic Category 2; Harmful; Dangerous for the Environment

Physical and Chemical Properties

Appearance
White to reddish crystals or crystalline powder or a light tan powder.
Solubility in water
1.3 g/L
Boiling Point
361
Vapor Pressure
2E-5 (25 C)
Density
1.234 g/cm3
pKa/pKb
9.31 (pKb)
Partition Coefficient
2.34
Heat Of Vaporization
60.7 kJ/mol
Heat Of Combustion
-1670 kJ/mol
Usage
Very sensitive reagent for detection of gold (1:10 million detectable), and free chlorine in water.
Refractive Index
1.641 (125 C)

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from light and air.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Skin
Causes skin irritation.
Eyes
Causes eye irritation.
Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Hazards
Contact with metals may evolve flammable hydrogen gas.
UN (DOT)
2811

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
May cause cancer in humans.
Exposure limit(s)
TLV: ppm; mg/m3 A3 (skin) (ACGIH 1997). OSHA PEL: See Appendix C NIOSH REL: Ca C 0.02 mg/m3 60-minute skin See Appendix A See Appendix C NIOSH IDLH: Potential occupational carcinogen
Poison Class
1*

Fire Fighting Measures

Flash Point
205
Autoignition
526
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 spray, dry chemical, carbon dioxide, or chemical foam.
Fire Potential
This material is probably combustible.

Accidental Release Measures

Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.

Stability and Reactivity

Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizers
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.
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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