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NIOSH

2-MERCAPTOBENZOTHIAZOLE

ICSC: 1183

Benzothiazolethiol
Benzothiazole-2-thione
MBT
C7H5NS2 / C6H4SNCSH
Molecular mass: 167.3
ICSC # 1183 		CAS # 149-30-4
RTECS # DL6475000
EC # 613-108-00-3
October 29, 2004 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE
AVOID ALL CONTACT!

•INHALATION
Local exhaust or breathing protection.
Fresh air, rest.
•SKIN
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
•EYES Redness. Pain.
Safety goggles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work.
Rinse mouth.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles.
Separated from acids.

Xi symbol
N symbol
R: 43-50/53
S: 2-24-37-60-61
ICSC: 1183 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.

2-MERCAPTOBENZOTHIAZOLE

ICSC: 1183

I

M

P

O

R

T

A

N

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D

A

T

A

PHYSICAL STATE; APPEARANCE:
YELLOW CRYSTALS , WITH PUNGENT ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and irritating fumes ( sulfur oxides , nitrogen oxides ). Reacts with acids or acids fumes to produce toxic fumes ( nitrogen oxides , sulfur oxides ).

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK: 4 I mg/m3; Sh;
Carcinogen category: 3B; Pregnancy risk group: C;
(DFG 2004).


ROUTES OF EXPOSURE:


INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization.

PHYSICAL
PROPERTIES

Melting point: 180-182°C
Density: 1.42
g/cm3
Solubility in water:
0.1 g/100 ml
Flash point: 200°C c.c.
Auto-ignition temperature: 628°C
Explosive limits, vol% in air: 15-?
Octanol/water partition coefficient as log Pow: 2.41

ENVIRONMENTAL
DATA

This substance may be hazardous to the environment; special attention should be given to fish.

N O T E S

Do NOT take working clothes home.

ADDITIONAL INFORMATION



ICSC: 1183 2-MERCAPTOBENZOTHIAZOLE
(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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