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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3,4-DCNB(99-54-7)

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
3,4-DCNB
Synonyms
1-Nitro-3,4-dichlorobenzene
3,4-Dichloronitrobenzene
Benzene, 1,2-dichloro-4-nitro-
DCNB
CAS
99-54-7
Formula
C6H3Cl2NO2
Molecular Weight
192
EINECS
202-764-2
RTECS
CZ5250000
RTECS Class
Mutagen; Reproductive Effector; Primary Irritant
Beilstein/Gmelin
2210335
Beilstein Reference
0-10-00-00624
EC Class
harmful, irritant, dangerous for the environment

Physical and Chemical Properties

Appearance
Colorless to tan needle-like crystals.
Solubility in water
150 mg/L
Melting Point
38 - 41
Boiling Point
256
Vapor Pressure
.01
Density
1.4558 g/cm3 (20 C)
Usage
Chemical intermediate for herbicides (eg, propanil) and insecticides & dye intermediates.
Vapor Density
6.63
Saturation Concentration
18 ppm (0.0018%) at 20 C (calculated)

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. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing 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 cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
Inhalation
May cause respiratory tract irritation.
Skin
Causes skin irritation.
Eyes
Causes eye irritation.
Hazards
Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 20/21/22 33 36 51/53
EC Safety Phrase
S 26 36/37/39 61
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.
Poison Class
2

Fire Fighting Measures

Flash Point
123
Autoignition
420
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 appropriate foam.
Upper exp. limit
8.4
Lower exp. limit
2.1
Fire Potential
This chemical is combustible.

Accidental Release Measures

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

Stability and Reactivity

Disposal Code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong bases.
Decomposition
Hydrogen chloride, 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
HS Code
2904 90 85
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