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NIOSH

3,3'-DIAMINOBENZIDINE

ICSC: 1666

3,3',4,4'-Biphenyltetramine
(1,1'-Biphenyl)-3,3',4,4'-tetraamine
3,3',4,4'-Diphenyltetramine
3,3',4,4'-Tetraaminobiphenyl
Biphenyl-3,3',4,4'-tetrayltetraamine
C12H14N4 / (NH2)2C6H3C6H3(NH2)2
Molecular mass: 214.3
ICSC # 1666 		CAS # 91-95-2
RTECS # DV8750000
April 20, 2007 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION


EXPOSURE
AVOID ALL CONTACT!

•INHALATION
Closed system and ventilation.
Fresh air, rest.
•SKIN
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES Redness.
Safety spectacles
Rinse with plenty of water (remove contact lenses if easily possible).
•INGESTION
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Give one or two glasses of water to drink. Seek medical attention if you feel unwell

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: particulate filter adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Dry. Well closed. Separated from food and feedstuffs and strong oxidants. Store in an area without drain or sewer access.

Signal: Warning
Excl mark-Health haz
Harmful if swallowed
Suspected of causing genetic defects
Suspected of causing cancer
ICSC: 1666 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

3,3'-DIAMINOBENZIDINE

ICSC: 1666

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
0\RED TO BROWN HYGROSCOPIC SOLID IN VARIOUS FORMS

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on burning producing nitrogen oxides Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK:
Carcinogen category: 3B
(DFG 2006).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body in hazardous amounts by inhalation of its aerosol and by ingestion.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
May cause mechanical irritation to the eyes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
This substance is possibly carcinogenic to humans.

PHYSICAL
PROPERTIES

Melting point: 176°C
(very poor)
Solubility in water:
Flash point: >200°C
Auto-ignition temperature: 560°C
Octanol/water partition coefficient as log Pow: 0.09

ENVIRONMENTAL
DATA


N O T E S

Do NOT take working clothes home. Depending on the degree of exposure, periodic medical examination is suggested. Environmental effects from the substance have not been investigated. The recommendations on this Card also apply to 3,3'-Diaminobenzidine tetrahydrochloride, CAS-number 7411-49-6.

ADDITIONAL INFORMATION



ICSC: 1666 3,3'-DIAMINOBENZIDINE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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