ICSC 0948 - SELENIUM OXYCHLORIDE

SELENIUM OXYCHLORIDE	ICSC: 0948 (March 2000)
Selenium chloride oxide Seleninyl chloride

CAS #: 7791-23-3

UN #: 2879

EC Number: 232-244-0

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.

STRICT HYGIENE!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Burning sensation. Cough. Laboured breathing. Sore throat. Shortness of breath. Symptoms may be delayed. See Notes.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin	Redness. Pain. Blisters. Skin burns.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
Eyes	Redness. Pain. Severe deep burns.	Wear face shield 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	Burning sensation. Sore throat. Nausea. Abdominal cramps. Vomiting. Abdominal pain. Diarrhoea. Shock or collapse.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 8; UN Subsidiary Risks: 6.1; UN Pack Group: I
STORAGE
Separated from metal oxides, strong bases and food and feedstuffs. Dry. Ventilation along the floor.
PACKAGING
Do not transport with food and feedstuffs.

SELENIUM OXYCHLORIDE

ICSC: 0948

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOWISH OR COLOURLESS LIQUID. Physical dangers Chemical dangers Decomposes on heating. This produces toxic and corrosive fumes. Reacts with water. This produces heat and corrosive fumes. The solution in water is a strong acid. It reacts violently with bases and is corrosive.	Formula: SeOCl₂ Molecular mass: 165.9 Boiling point: 176.4°C Melting point: 8.5°C Relative density (water = 1): 2.42 Solubility in water: reaction Vapour pressure, Pa at 34.8°C: 132

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOWISH OR COLOURLESS LIQUID.

Physical dangers

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes. Reacts with water. This produces heat and corrosive fumes. The solution in water is a strong acid. It reacts violently with bases and is corrosive.

Formula: SeOCl₂
Molecular mass: 165.9
Boiling point: 176.4°C
Melting point: 8.5°C
Relative density (water = 1): 2.42
Solubility in water: reaction
Vapour pressure, Pa at 34.8°C: 132

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour and by ingestion. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of the vapour may cause lung oedema. See Notes. Medical observation is indicated.	Inhalation risk A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the respiratory tract, gastrointestinal tract, central nervous system and liver. This may result in nasal irritation, persistent garlic odour, stomach pain, nervousness and liver impairment.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of the vapour may cause lung oedema. See Notes. Medical observation is indicated.

Inhalation risk
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the respiratory tract, gastrointestinal tract, central nervous system and liver. This may result in nasal irritation, persistent garlic odour, stomach pain, nervousness and liver impairment.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.2 mg/m³, as TWA. MAK: (as Se, inhalable fraction): 0.02 mg/m³; peak limitation category: II(8); skin absorption (H); carcinogen category: 3; pregnancy risk group: C

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered. Do NOT take working clothes home.

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 23/25-33-50/53; S: (1/2)-20/21-28-45-60-61; Note: A

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    See Also:
       Toxicological Abbreviations