ICSC 0951 - SODIUM FLUORIDE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

SODIUM FLUORIDE

ICSC: 0951
_{November 2003}

Natrium fluoride
Sodium monofluoride

CAS No: 7681-49-4
RTECS No: WB0350000
UN No: 1690
EC No: 009-004-00-7

NaF
Molecular mass: 42.0

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames. NO contact with hot surfaces.	In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION			In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE
Inhalation	Cough. Sore throat.	Ventilation (not if powder), local exhaust, or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Redness.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes	Redness. Pain.	Face shield or eye protection in combination with breathing protection if powder.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain. Burning sensation. Convulsions. Drowsiness. Cough. Diarrhoea. Sore throat. Vomiting. Unconsciousness.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give plenty of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into covered containers. Carefully collect remainder, then remove to safe place. Personal protection: P2 filter respirator for harmful particles.	T Symbol R: 25-32-36/38 S: (1/2-)22-36-45 UN Hazard Class: 6.1 UN Pack Group: III	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-61S1690 NFPA Code: H3; F0; R0	Separated from acids, food and feedstuffs.

IMPORTANT DATA

Physical State; Appearance
WHITE CRYSTALS OR POWDER

Chemical dangers
On contact with hot surfaces or flames this substance decomposes forming toxic and corrosive fumes. Reacts with acids to produce toxic and corrosive fumes.

Occupational exposure limits
TLV: (as fluoride) 2.5 mg/m³ as TWA; A4 (not classifiable as a human carcinogen); BEI issued; (ACGIH 2003).
MAK: (as F) (Inhalable fraction) 1 mg/m³; Peak limitation category: II(4); skin absorption (H); Pregnancy risk group: C; (DFG 2005).
EU OEL: (as fluoride) 2.5 mg/m³ as TWA; (EU 2002).

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly; on spraying or dispersing, however, much faster.

Effects of short-term exposure
The substance is irritating to the eyes, the skin and the respiratory tract. Exposure when ingested could cause hypocalcaemia and hypokalaemia, resulting in central nervous system and cardiac disorders.

Effects of long-term or repeated exposure
The substance may have effects on the bones and teeth (fluorosis).

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 1700°C Melting point: 993°C Density: 2.8 g/cm³ Solubility in water, g/100 ml at 20°C: 4.0

NOTES

Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Card has been partly updated in October 2005. See section Occupational Exposure Limits.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

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