EMS CATALOG NO: 13060
EMS PRODUCT: DAB
DATE: 04/20/02
PAGE NUMBER: One of 5
MATERIAL SAFETY DATA SHEET
The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be
obtained from the use thereof.
Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.
ELECTRON MICROSCOPY SCIENCES
321 MORRIS ROAD
P.O. BOX 251
FORT WASHINGTON, PA 19034 24 HOUR EMERGENCY PHONE
NUMBER
(215) 646-1566 CHEMTREC: (800) 424-9300
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FOR PRODUCT AND SALES INFORMATION
_________________________________________________________________
CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.
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PRODUCT IDENTIFICATION
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PRODUCT NAME: 3,3'-Diamino-benzidine, DAB
CAS NUMBER: 91-95-2
FORMULA: C12H14N4
SYNONYMS: 3,3'-Diaminobenzidene * 3,3',4,4'-Diphenyltetramine *
3,3',4,4'-Tetraaminobiphenyl *
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HAZARDS IDENTIFICATION
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LABEL PRECAUTIONARY STATEMENTS:
Harmful
Harmful if swallowed.
Irritating to eyes, respiratory system and skin.
In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
Wear suitable protective clothing.
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FIRST-AID MEASURES
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In case of contact, immediately flush eyes or skin with copious
amounts of water for at least 15 minutes while removing
contaminated clothing and shoes.
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
Discard contaminated clothing and shoes.
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FIRE FIGHTING MEASURES
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EXTINGUISHING MEDIA:
Water spray.
Carbon Dioxide, dry chemical powder or appropriate foam.
SPECIAL FIREFIGHTING PROCEDURES:
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
2
UNUSUAL FIRE AND EXPLOSIONS HAZARDS:
Emits toxic fumes under fire conditions.
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ACCIDENTAL RELEASE MEASURES
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Wear respirator, chemical safety goggles, rubber boots and
heavy rubber gloves. Sweep up, place in a bag and hold for
waste disposal. Mechanical exhaust required. Ventilate
area and wash spill site after material pickup is complete.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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Wear appropriate NIOSH/MSHA-approved respirator,
chemical-resistant gloves, safety goggles, other protective
clothing.
Safety shower and eye bath.
Mechanical exhaust required.
Do not breathe dust.
Do not get in eyes, on skin, on clothing.
Avoid prolonged or repeated exposure.
Wash thoroughly after handling.
Harmful Solid.
Irritant.
Keep tightly closed.
Store in a cool dry place.
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PHYSICAL AND CHEMICAL PROPERTIES
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APPEARANCE AND ODOR: Brown Powder
PHYSICAL PROPERTIES:
173oC to 176oC
MELTING POINT:
3
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STABILITY AND REACTIVITY
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STABILITY: Stable
INCOMPATIBILITIES: Strong oxidizing agents.
Sensitive to light
Protect from moisture.
HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS TOXIC
FUMES OF:
Carbon Monoxide, Carbon Dioxide
Nitrogen Oxides.
HAZARDOUS POLYMERIZATION:
Will not occur.
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TOXICOLOGICAL INFORMATION
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ACUTE EFFECTS:
Harmful if swallowed.
May be harmful if inhaled.
May be harmful if absorbed through the skin.
Causes eye and skin irritation.
Material is irritating to mucous membranes and upper
respiratory tract.
To the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly
investigated.
ADDITIONAL INFORMATION:
Although Diaminobenzidine is structurally related to
Benzidine, there is no evidence for the carcinogenicity of
Diaminobenzidine.
RTECS NO: DV8750000 - 3,3'4,4'
-Biphenyltetramine
4
TOXICITY DATA:
Orl-Mus LD50: 1834 mg/kg GISAAA 46(1),94,1981
Only selected registry of toxic effects of chemical substances
(RTECS) data is presented here. See actual entry in RTECS for
complete information.
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ECOLOGICAL INFORMATION
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Data not yet available.
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DISPOSAL CONSIDERATIONS
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Dissolve or mix the material with a combustible solvent and
burn in a chemical incinerator equipped with an afterburner
and scrubber. Observe all Federal, State and Local
environmental regulations.
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REGULATORY INFORMATION
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EUROPEAN INFORMATION:
Harmful R-22
Harmul if swallowed R-36/37/38
Irritating to eyes, respiratory system and skin. S-26
In case of contact with eyes, rinse immediately with plenty
of water and seek medical advice. S-36
Wear Suitable protective clothing.
REVIEWS, STANDARDS, AND REGULATIONS:
OEL = MAK
NOES 1983: HZD X5448; NIS 1; TNF 38; NOS 2; TNE 135; TFE 95
EPA TSCA SECTION 8 (B) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) Data Base SEPTEMBER 1997
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