ICSC 1287 - METHYLENE BIS(THIOCYANATE)

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METHYLENE BIS(THIOCYANATE)	ICSC: 1287 (April 2000)
Thiocyanic acid, methylene ester Methylene dithiocyanate

CAS #: 6317-18-6

EC Number: 228-652-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	See Notes.	Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear 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 refer for medical attention.
Ingestion	See Notes.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT wash away into sewer. 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 Transportation UN Classification
STORAGE
Separated from food and feedstuffs. Well closed.
PACKAGING
Do not transport with food and feedstuffs.

METHYLENE BIS(THIOCYANATE)

ICSC: 1287

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance SOLID IN VARIOUS FORMS. Physical dangers Chemical dangers Decomposes on heating. This produces toxic fumes of nitrogen oxides and sulfur oxides. Reacts with strong acids. This generates toxic hazard.	Formula: C₃H₂N₂S₂ / SCNCH₂SCN Molecular mass: 130.2 Melting point: 105-107°C Solubility in water: none

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
SOLID IN VARIOUS FORMS.

Physical dangers

Chemical dangers
Decomposes on heating. This produces toxic fumes of nitrogen oxides and sulfur oxides. Reacts with strong acids. This generates toxic hazard.

Formula: C₃H₂N₂S₂ / SCNCH₂SCN
Molecular mass: 130.2
Melting point: 105-107°C
Solubility in water: none

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

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and skin. See Notes.

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

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

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is very toxic to aquatic organisms. Avoid release to the environment in circumstances different to normal use.

NOTES
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. Effects of this compound are due to release of cyanide. See ICSC 0492.

ADDITIONAL INFORMATION

EC Classification
Symbol: T+, N; R: 25-26-34-43-50; S: (1/2)-26-28-36/37/39-45-61

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