Home > 1,2-Dinitrobenzene > 1,2-Dinitrobenzene(528-29-0)
1,2-Dinitrobenzene(528-29-0)
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
1,2-Dinitrobenzene
1,2-Dinitrobenzene
Synonyms
1,2-Dinitrobenzene
1,2-Dinitrobenzol
1,2-DNB
1,2-Dinitrobenzene
1,2-Dinitrobenzol
1,2-DNB
CAS
528-29-0
528-29-0
Formula
C6H4N2O4
C6H4N2O4
Molecular Weight
168.11
168.11
EINECS
208-431-8
208-431-8
RTECS
CZ7450000
CZ7450000
RTECS Class
Mutagen
Mutagen
Beilstein/Gmelin
642224
642224
Beilstein Reference
4-05-00-00738
4-05-00-00738
EC Index Number
609-004-00-2
609-004-00-2
EC Class
Very toxic; Danger of cumulative effects; Dangerous for the Environment
Very toxic; Danger of cumulative effects; Dangerous for the Environment
Physical and Chemical Properties
Appearance
Colorless to yellow solid.
Colorless to yellow solid.
Solubility in water
0.5 g/L
0.5 g/L
Melting Point
112 - 115
112 - 115
Boiling Point
297
297
Vapor Pressure
0.0006 (25 C)
0.0006 (25 C)
Density
1.31 g/cm3 (20 C)
1.31 g/cm3 (20 C)
Partition Coefficient
1.58
1.58
Heat Of Vaporization
53.9 kJ/mol
53.9 kJ/mol
Heat Of Combustion
-2945 kJ/mol
-2945 kJ/mol
Usage
Used for the synthesis of dyestuffs, dyestuff intermediates, explosives, and celluloid production.
Used for the synthesis of dyestuffs, dyestuff intermediates, explosives, and celluloid production.
Vapor Density
5.79
5.79
Refractive Index
1.565 (17 C)
1.565 (17 C)
First Aid Measures
Ingestion
Seek medical assistance.
Seek medical assistance.
Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. If patient is cyanotic and symptomatic, methemoglobinemia is likely and methylene blue therapy should be initiated.
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. If patient is cyanotic and symptomatic, methemoglobinemia is likely and methylene blue therapy should be initiated.
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.
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
Storage
Store at only in permanent magazine. Keep away from initiator explosives and protected from physical damage - separated from oxidizing materials and source of heat.
Store at only in permanent magazine. Keep away from initiator explosives and protected from physical damage - separated from oxidizing materials and source of heat.
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.
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
Respiratory failure may occur.
Respiratory failure may occur.
Skin
Persistent cyanosis in spite of oxygen therapy usually occurs when the methemoglobin level is greater than 15 percent.
Persistent cyanosis in spite of oxygen therapy usually occurs when the methemoglobin level is greater than 15 percent.
Eyes
Brown discoloration of the vessels of the fundus and the mucous membrane that lines the inner surface of the eyelid and the exposed surface of the eyeball may occur. Changes in visual acuity, decreased visual fields, irritation and a diminishing vision within the visual field may occur.
Brown discoloration of the vessels of the fundus and the mucous membrane that lines the inner surface of the eyelid and the exposed surface of the eyeball may occur. Changes in visual acuity, decreased visual fields, irritation and a diminishing vision within the visual field may occur.
Ingestion
Nausea and vomiting may occur. Urine and vomitus may have the odor of bitter almonds.
Nausea and vomiting may occur. Urine and vomitus may have the odor of bitter almonds.
Hazards
Containers may explode when heated.
Containers may explode when heated.
EC Risk Phrase
R 26/27/28 33 50/53
R 26/27/28 33 50/53
EC Safety Phrase
S 28.1 36/37 45 60 61
S 28.1 36/37 45 60 61
UN (DOT)
1597
1597
Exposure Controls/Personal Protection
Personal Protection
Employees should be provided with and required to use impervious clothing, gloves, face shields (eight-inch minimum), and other appropriate protective clothing necessary to prevent skin contact with dinitrobenzene or liquids containing dinitrobenzene. Wear appropriate eye protection and protective clothing to prevent skin and eye contact. Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure.
Employees should be provided with and required to use impervious clothing, gloves, face shields (eight-inch minimum), and other appropriate protective clothing necessary to prevent skin contact with dinitrobenzene or liquids containing dinitrobenzene. Wear appropriate eye protection and protective clothing to prevent skin and eye contact. Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure.
Respirators
Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure mode.
Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure mode.
Exposure Effects
Rapid heart rate, rapid breathing, abnormally low blood pressure, and respiratory depression may occur. Headache, dizziness, lethargy, and coma are possible. Nitrobenzene is a possible animal teratogen.
Rapid heart rate, rapid breathing, abnormally low blood pressure, and respiratory depression may occur. Headache, dizziness, lethargy, and coma are possible. Nitrobenzene is a possible animal teratogen.
Exposure limit(s)
TLV: 0.15 ppm; 1.0 mg/m3 (as TWA) (skin) (ACGIH 1996). OSHA PEL: TWA 1 mg/m3 skin NIOSH REL: TWA 1 mg/m3 skin NIOSH IDLH: 50 mg/m3
TLV: 0.15 ppm; 1.0 mg/m3 (as TWA) (skin) (ACGIH 1996). OSHA PEL: TWA 1 mg/m3 skin NIOSH REL: TWA 1 mg/m3 skin NIOSH IDLH: 50 mg/m3
Poison Class
2
2
Fire Fighting Measures
Flash Point
150
150
Fire Fighting
Fire Extinguishing Agents: Water, CO 2 , or dry chemical.
Fire Extinguishing Agents: Water, CO 2 , or dry chemical.
Upper exp. limit
9.8
9.8
Lower exp. limit
1.8
1.8
Fire Potential
Slightly flammable.
Slightly flammable.
Accidental Release Measures
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability and Reactivity
Disposal Code
9
9
Stability
Highly reactive.
Highly reactive.
Incompatibilities
May react vigorously with oxidizing materials.
May react vigorously with oxidizing materials.
Decomposition
On combustion, forms toxic gases and fumes including nitrogen oxides.
On combustion, forms toxic gases and fumes including nitrogen oxides.
Combustion Products
Emits highly toxic fumes of oxides of nitrogen.
Emits highly toxic fumes of oxides of nitrogen.
Transport Information
UN Number
1597
1597
Hazard Class
6.1
6.1
Packing Group
II
II
HS Code
2904 20 00
2904 20 00