MSDS Name:   Diphenylamine, p.a.; redox-indicator
Synonym:   N-Phenylamiline; Anilinobenzene; N-Phenylbenzeneamine; DPA
Company:   AboutChem.com

**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 122-39-4 |Diphenylamine, p.a.; redox-indicator | 100.0 | 204-539-4 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T N
Risk Phrases: 23/24/25 33 50/53

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Toxic by inhalation, in contact with skin and if swallowed. Danger
of cumulative effects. Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.Light sensitive.

Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May cause skin sensitization, an allergic
reaction, which becomes evident upon re-exposure to this material.
Ingestion:
May cause irritation of the digestive tract. May cause effects
similar to those of acute inhalation.
Inhalation:
Inhalation of vapor may cause respiratory tract irritation. May
cause methemoglobinemia, cyanosis (bluish discoloration of skin due
to deficient oxygenation of the blood), convulsions, tachycardia,
dyspnea (labored breathing), and death. May cause adverse central
nervous system effects including headache, convulsions, and possible
death. May cause bladder injury and hypertension.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. May cause
reproductive and fetal effects. There is a danger of cumulative
effects.

**** 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.
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. Destroy contaminated shoes.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical
aid immediately. Do NOT induce vomiting. If conscious and alert,
rinse mouth and drink 2-4 cupfuls of milk or water.
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:
Absorption of this product into the body may cause cyanosis (bluish
discoloration of skin due to deficient oxygenation of the blood).
Moderate degrees of cyanosis need to be treated only by supportive
measures: bed rest and oxygen inhalation. For methemoglobinemia,
administer oxygen alone or with Methylene Blue depending on the
methemoglobin concentration in the blood. Cleansing of the entire
contaminated area of the body is of utmost importance.

**** 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. This material in sufficient quantity and reduced
particle size is capable of creating a dust explosion.
Extinguishing Media:
Water or foam may cause frothing. In case of fire, use carbon
dioxide, dry chemical powder or appropriate foam.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Remove contaminated clothing and wash before reuse. Use with
adequate ventilation. Avoid contact with eyes, skin, and clothing. Do
not ingest or inhale. Store protected from light.
Storage:
Keep away from sources of ignition. Do not store in direct sunlight.
Store in a tightly closed container. Keep from contact with oxidizing
materials. Store in a cool, dry, well-ventilated area away from
incompatible substances. Store protected from light.

**** 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# 122-39-4:
United Kingdom, WEL - TWA: 10 mg/m3 TWA
United Kingdom, WEL - STEL: 20 mg/m3 STEL

Belgium - TWA: 10 mg/m3 VLE
France - VME: 10 mg/m3 VME
Germany: 5 mg/m3 TWA (inhalable fraction)
Germany: Skin absorber
Malaysia: 10 mg/m3 TWA
Netherlands: 0.7 mg/m3 MAC
Spain: 10 mg/m3 VLA-ED

Personal Protective Equipment

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 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: Solid
Color: colorless to grayish
Odor: floral-like
pH: Not available.
Vapor Pressure: 1 mm Hg @ 108 C
Viscosity: Not available.
Boiling Point: 576 deg F
Freezing/Melting Point: 129 - 131F
Autoignition Temperature: 634 deg C ( 1,173.20 deg F)
Flash Point: 153 deg C ( 307.40 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Negligible in water.
Specific Gravity/Density: 1.160
Molecular Formula: C12H11N
Molecular Weight: 169.0837

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable.
Conditions to Avoid:
Incompatible materials, light, ignition sources, excess heat.
Incompatibilities with Other Materials:
Oxidizing agents, strong acids, isocyanates, hexachloromelamine,
organic anhydrides, aldehydes, trichloromelamine.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 122-39-4: JJ7800000
LD50/LC50:
CAS# 122-39-4: Oral, mouse: LD50 = 1230 mg/kg; Oral, rat: LD50 =
1120 mg/kg.
Carcinogenicity:
Diphenylamine, p.a.; redox-indicator -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Bacteria: Phytobacterium phosphoreum: EC50 =4.77 mg/L; 5,15,30
minutes; Microtox test

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
*
Hazard Class: 9
UN Number: 3077
Packing Group: III
IMO
Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
Hazard Class: 9
UN Number: 3077
Packing Group: III
RID/ADR
Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
Hazard Class: 9
UN Number: 3077
Packing group: III

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T N
Risk Phrases:
R 23/24/25 Toxic by inhalation, in contact with skin
and if swallowed.
R 33 Danger of cumulative effects.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 28 After contact with skin, wash immediately
with...
S 36/37 Wear suitable protective clothing and
gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 122-39-4: 3
Canada
CAS# 122-39-4 is listed on Canada's DSL List.
CAS# 122-39-4 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 122-39-4 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 6/16/1999 Revision #2 Date: 3/18/2003

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