International Chemical Safety Cards

AMMONIUM FLUORIDE ICSC: 1223
AMMONIUM FLUORIDE
NH4F
Molecular mass: 37.04
CAS # 12125-01-8
RTECS # BQ6300000
ICSC # 1223
UN # 2505
EC # 009-006-00-8

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.

In case of fire in the surroundings: water in large amounts.
EXPLOSION


 
EXPOSURE
PREVENT DISPERSION OF DUST!

INHALATION Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
SKIN Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
EYES Redness.
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 Diarrhoea. Nausea. Vomiting. Salivation.
Do not eat, drink, or smoke during work.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Sweep spilled substance into dry plastic containers. Carefully collect remainder, then remove to safe place (extra personal protection: P3 filter respirator for toxic particles).
Separated from incompatible substances (see Chemical Dangers), food and feedstuffs. Dry. Well closed.
Do not transport with food and feedstuffs.
T symbol
R: 23/24/25
S: (1/2-)26-45
UN Hazard Class: 6.1
UN Packing Group: III
SEE IMPORTANT INFORMATION ON BACK
ICSC: 1223 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

AMMONIUM FLUORIDE ICSC: 1223

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PHYSICAL STATE; APPEARANCE:
COLOURLESS DELIQUESCENT CRYSTALS.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing toxic and corrosive fumes including hydrogen fluoride, nitrogen oxides and ammonia. The solution in water is a weak acid. Reacts with chlorine trifluoride causing explosion hazard. Attacks glass and metal.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV (as F): ppm; 2.5 mg/m3 (as TWA) (ACGIH 1995-1996).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the bones and teeth , resulting in fluorosis.
PHYSICAL
PROPERTIES
 Melting point: Sublimes°C
Relative density (water = 1): 1.01 		Solubility in water, g/100 ml at 25°C: 45.3
ENVIRONMENTAL
DATA
 The substance is harmful to aquatic organisms.
N O T E S
Transport Emergency Card: TEC (R)-61G64c
NFPA Code: H3; F0; R0;
ADDITIONAL INFORMATION


ICSC: 1223 AMMONIUM FLUORIDE
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of 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.