Natrium fluoride
Sodium monofluoride
NaF
Molecular mass: 42.0
ICSC # 0951
CAS # 7681-49-4
RTECS # WB0350000
UN # 1690
EC # 009-004-00-7
Ch, al comments made for Helsinki by scient. ed. incorporated, April 2003.
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
NO contact with hot surfaces.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Cough.
Sore throat.
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Ventilation (not if powder), local exhaust, or breathing protection.
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Fresh air, rest.
Half-upright position.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Face shield
or
eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Burning sensation.
Convulsions.
Drowsiness.
Cough.
Diarrhoea.
Sore throat.
Vomiting.
Unconsciousness.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Give plenty of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into covered containers.
Carefully collect remainder,
then remove to safe place.
Personal protection: P2 filter respirator for harmful particles.
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Separated from
acids,
food and feedstuffs
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Do not transport with food and feedstuffs.
T symbol
R: 25-32-36/38
S: 1/2-22-36-45
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
WHITE
CRYSTALS
OR POWDER
Physical Dangers:
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).
OSHA PEL*: TWA 2.5 mg/m3 *Note: The PEL also applies to other inorganic, solid fluorides (as F).
NIOSH REL*: TWA 2.5 mg/m3 *Note: The REL also applies to other inorganic, solid fluorides (as F).
NIOSH IDLH: 250 mg/m3 (as F) See: fluoride
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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).
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Physical
Properties
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Boiling point: 1700°C
Melting point: 993°C
Density: 2.8
g/cm3
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Solubility in water, g/100 ml at 20°C: 4.0
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Environmental
Data
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N O T E S
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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.
Transport Emergency Card: TEC (R)-61S1690
NFPA Code: H3; F0; R0;
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ADDITIONAL INFORMATION
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ICSC: 0951
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SODIUM FLUORIDE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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