ICSC 0505 - 2-MERCAPTOBENZOTHIAZOLE DISULFIDE

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2-MERCAPTOBENZOTHIAZOLE DISULFIDE	ICSC: 0505 (April 2017)
Benzothiazolyl disulfide MBTS 2,2'-Dithiobis (benzothiazole)

CAS #: 120-78-5

UN #: 3077

EC Number: 204-424-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air.	NO open flames. PREVENT DISPERSION OF DUST. Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.	Use water spray, dry powder, foam, carbon dioxide.

AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation		Use local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves. Protective clothing.	Wear protective gloves when administering first aid. Remove contaminated clothes. See Notes. Rinse and then wash skin with water and soap.
Eyes	Redness.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: face shield and particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria WARNING May cause an allergic skin reaction Very toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 9; UN Pack Group: III
STORAGE
Store only in original container. Separated from strong oxidants. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
PACKAGING
Marine pollutant.

2-MERCAPTOBENZOTHIAZOLE DISULFIDE

ICSC: 0505

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOW POWDER WITH CHARACTERISTIC ODOUR. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Decomposes on burning. This produces toxic and corrosive gases including carbon oxides, nitrogen oxides and sulfur oxides. Reacts with strong oxidants. This produces toxic and corrosive gases including carbon oxides, nitrogen oxides, sulfur oxides and hydrogen sulfide.	Formula: C₁₄H₈N₂S₄ Molecular mass: 332.5 Melting point: 180°C Density (at 20°C): 1.5 g/cm³ Solubility in water: very poor Octanol/water partition coefficient as log Pow: 4.5 Flash point: 257°C

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW POWDER WITH CHARACTERISTIC ODOUR.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air.

Chemical dangers
Decomposes on burning. This produces toxic and corrosive gases including carbon oxides, nitrogen oxides and sulfur oxides. Reacts with strong oxidants. This produces toxic and corrosive gases including carbon oxides, nitrogen oxides, sulfur oxides and hydrogen sulfide.

Formula: C₁₄H₈N₂S₄
Molecular mass: 332.5
Melting point: 180°C
Density (at 20°C): 1.5 g/cm³
Solubility in water: very poor
Octanol/water partition coefficient as log Pow: 4.5
Flash point: 257°C

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure The substance may be irritating to the eyes.	Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization. See Notes.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

Effects of short-term exposure
The substance may be irritating to the eyes.

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. See Notes.

OCCUPATIONAL EXPOSURE LIMITS
MAK: sensitization of skin (SH)

ENVIRONMENT
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment because it is persistent.

NOTES
Do NOT take working clothes home. Isolate contaminated clothing by sealing in a bag or other container. 2-Mercaptobenzothiazole (MBT, see ICSC #1183) a substance closely related to MBTS, is classified by IARC for its carcinogenicity. Anyone who has shown skin sensitization due to this substance should avoid all further contact.

ADDITIONAL INFORMATION

EC Classification
Symbol: Xi, N; R: 31-43-50/53; S: (2)-36/37-60-61

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