Name:
n n-Dimethyl-4-nitrosoaniline
Synonym:
4-Nitroso-N,N-dimethylaniline; Accelerine; p-Nitrosodimethylanilin
CAS:
138-89-6
Section 1 - Chemical Product
MSDS Name:n n-Dimethyl-4-nitrosoaniline
Synonym:4-Nitroso-N,N-dimethylaniline; Accelerine; p-Nitrosodimethylanilin
Synonym:4-Nitroso-N,N-dimethylaniline; Accelerine; p-Nitrosodimethylanilin
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 138-89-6 | N,N-Dimethyl-4-nitrosoaniline | 100.0 | 205-343-1 |
| Hazard Symbols: T Risk Phrases: 23/24/25 33 8 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Toxic by inhalation, in contact with skin and if swallowed. Danger of cumulative effects. Contact with combustible material may cause fire.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
Causes skin irritation. Strong irritant of the skin.
Ingestion:
Harmful if swallowed. Causes digestive tract irritation.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.
Toxic by inhalation, in contact with skin and if swallowed. Danger of cumulative effects. Contact with combustible material may cause fire.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
Causes skin irritation. Strong irritant of the skin.
Ingestion:
Harmful if swallowed. Causes digestive tract irritation.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.
Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
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 and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Antidote: None reported.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
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 and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Antidote: None reported.
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Combustible solid. May burn rapidly with flare burning effect. May re-ignite after fire is extinguished. Containers may explode when heated.
Extinguishing Media:
Do NOT use water directly on fire. DO NOT USE WATER, CO2, OR FOAM DIRECTLY ON FIRE ITSELF. For large fires, use dry sand, dry chemical, soda ash or lime or withdraw from area and let fire burn.
For small fires, use dry chemical, soda ash, lime or dry sand.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Combustible solid. May burn rapidly with flare burning effect. May re-ignite after fire is extinguished. Containers may explode when heated.
Extinguishing Media:
Do NOT use water directly on fire. DO NOT USE WATER, CO2, OR FOAM DIRECTLY ON FIRE ITSELF. For large fires, use dry sand, dry chemical, soda ash or lime or withdraw from area and let fire burn.
For small fires, use dry chemical, soda ash, lime or dry sand.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Remove all sources of ignition.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Remove all sources of ignition.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Flammables-area. Keep containers tightly closed.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from water. Flammables-area. Keep containers tightly closed.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 138-89-6: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 138-89-6: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs 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 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Crystalline powder
Color: green
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 85.00 - 87.00 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not available.
Explosion Limits, lower: N/A
Explosion Limits, upper: N/A
Decomposition Temperature:
Solubility in water: insoluble
Specific Gravity/Density: 1.145 @ 20 C
Molecular Formula: C8H10N2O
Molecular Weight: 150.18
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong reducing agents, strong acids, acetic acid, acetic anhydride.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.
Hazardous Polymerization: Has not been reported.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong reducing agents, strong acids, acetic acid, acetic anhydride.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 138-89-6: BX7175000 LD50/LC50:
Not available.
Oral, Rat:LD50=65 Carcinogenicity:
N,N-Dimethyl-4-nitrosoaniline - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 138-89-6: BX7175000 LD50/LC50:
Not available.
Oral, Rat:LD50=65 Carcinogenicity:
N,N-Dimethyl-4-nitrosoaniline - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Other No information available.
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: p-NITROSODIMETHYLANILINE
Hazard Class: 4.2
UN Number: 1369
Packing Group: II
IMO
Shipping Name: para-NITROSODIMETHYLANILINE
Hazard Class: 4.2
UN Number: 1369
Packing Group: II
RID/ADR
Shipping Name: p-NITROSODIMETHYLANILINE
Hazard Class: 4.2
UN Number: 1369
Packing group: II
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 23/24/25 Toxic by inhalation, in contact with skin
and if swallowed.
R 33 Danger of cumulative effects.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 28A After contact with skin, wash immediately with
plenty of water.
S 37 Wear suitable gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 138-89-6: No information available.
Canada
CAS# 138-89-6 is listed on Canadas DSL List.
CAS# 138-89-6 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 138-89-6 is listed on the TSCA inventory.
