2-Mercaptobenzothiazole disulfide

  • MBTS
  • 2,2'-Dithiobis (benzothiazole)
  • Benzothiazolyl disulfide
  • di(Benzothiazol-2-yl) disulfide
Formula
C14H8N2S4
Structure
Description
Pale yellow needles or powder, odorless.
Uses
Accelerator for natural rubber, styrene-butadiene rubber, nitrile-butadiene rubber, butadiene rubber & for synthetic isoprene rubber.

Registry Numbers and Inventories.
CAS
120-78-5
EC (EINECS/ELINCS)
204-424-9
EC Index Number
612-135-00-0
EC Class
Contact with acids liberates toxic gas; Sensitising; Dangerous for the Environment
R 31 43 50/53
S 36/37 60 61
RTECS
DL4550000
RTECS class
Tumorigen; Mutagen; Reproductive Effector
UN (DOT)
3077
Merck
12,3435
Beilstein/Gmelin
285796
Beilstein Reference
4-27-00-01862
EPA OPP
9202
Swiss Giftliste 1
G-5253
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C14H8N2S4
Formula mass
332.49
Melting point, °C
177 - 180
Vapor density (air=1)
1.5
Density
1.54 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation.
Protection
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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide.

Fire.
Flash Point,°C
271
Fire fighting
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. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
This chemical is combustible.

Health.
Poison_Class
-
Exposure effects
Seizures have been reported in animals given 335 mg/kg.
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
Dust may cause mechanical irritation.

First aid
 
   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 to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3077
Response guide
HS Code
2934 20 20