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1. PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: CHEMICAL FORMULA:
Sodium Hydrogen Fluoride NaHF2
COMPANY NAME:
PELCHEM: The Chemical Division of NECSA
P O Box 582, Pretoria, 0001, South Africa
Tel: 27 12 305-3396 / Fax: 27 12 305-3728
E-mail: cheminfo@pelchem.necsa.co.za / Cell: +27 83 628 0831
Emergency tel: +27 12 305-3333/4
2. COMPOSITION/INFORMATION ON INGREDIENTS
CHEMICAL NAME OF SUBSTANCE: SYNONYMS: CONCENTRATION:
Sodium Hydrogen Fluoride Sodium Bifluoride; >99%
Sodium Acid Fluoride
UN No: CAS-No:
2439 1333-83-1
3. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Toxic if swallowed. Harmful if inhaled. Dust is very noxious; causes sneezing and
irritation of nose, throat. Burns eyes; poisonous when taken internally. Causes skin
irritation, especially in the presence of perspiration. When dry, sodium bifluoride is
non-corrosive and relatively non-abrasive; when moist, or in solution, the salt is
corrosive behaving like a solution of weak hydrofluoric acid.
4. FIRST AID MEASURES
GENERAL ADVICE: SKIN CONTACT:
Remove from exposure, lie down. Wash off immediately with soap and plenty
Take all contaminated clothing off of water removing all contaminated clothes
immediately. Show this safety data sheet and shoes. Move to fresh air. Consult a
to the doctor in attendance. physician. Brush off excess material.
INHALATION: PROTECTION OF FIRST-AIDERS:
Move to fresh air. Give oxygen. Consult a Ensure adequate ventilation. Use personal
physician. protective equipment.
EYE CONTACT: INGESTION:
Move to fresh air. Rinse immediately with Move to fresh air. Call a physician
plenty of water, also under the eyelids. immediately. Drink plenty of water. If
Consult a physician. possible drink milk afterwards.
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5. FIRE-FIGHTING MEASURES
SUITABLE EXTINGUISHING MEDIA: SPECIAL PROTECTIVE EQUIPMENT
Non-flammable. Water or water spray for FOR FIREFIGHTERS:
fires adjacent to non-leaking tanks or In case of fire, wear a self-contained
containers. Carbon dioxide (CO2), foam, breathing apparatus.
dry chemical
SPECIFIC METHODS: SPECIFIC HAZARDS:
Cool containers and tanks with water Heating can release hazardous gases and
spray. hydrogen fluoride can be produced during
a fire.
6. ACCIDENTAL RELEASE MEASURES
PERSONAL PRECAUTIONS: ENVIRONMENTAL PRECAUTIONS:
Ensure adequate ventilation. Use Do not allow material to contaminate
personal protective equipment. Evacuate ground water system. Prevent product from
personnel to safe areas. entering drains.
METHODS FOR CLEANING UP:
Clean up promptly by scoop or vacuum.
Do not create a powder cloud by using a brush or compressed air.
7. HANDLING AND STORAGE
TECHNICAL MEASURES AND SAFE HANDLING ADVICE:
Avoid dust formation. Wear personal
PRECAUTIONS:
protective equipment. Handle an open
Use only in area provided with appropriate
container with care.
exhaust ventilation. Avoid high
temperatures.
HANDLING AND OPEN STORAGE PACKAGING MATERIAL:
40 x 25kg woven polypropylene bags with
CONDITIONS:
plastic liners on a palette, cling wrapped
Keep containers tightly closed in a dry and
and labeled.
well ventilated area.
8. EXPOSURE CONTROLS AND PERSONAL PROTECTION
ENGINEERING MEASURES TO REDUCE CONTROL PARAMETERS:
OSHA Permitted exposure limit (PEL
EXPOSURE:
Final) 8 hr TWA 2.5mg(F)/m3.
Ensure adequate ventilation, especially in
confined areas.
RESPIRATORY PROTECTION: EYE PROTECTION:
In case of dust, use a respirator. Tightly fitting safety goggles, face
shield.
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SKIN AND BODY PROTECTION: HAND PROTECTION:
Complete suit protecting against chemicals. Hydrofluoric acid-resistant and solvent-
Remove and wash contaminated clothing resistant gloves (gloves made of
before re-use. VITON*).
HYGIENE MEASURES:
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately
after handling the product. When using - do not eat, drink or smoke.
9. PHYSICAL AND CHEMICAL PROPERTIES
FORM: COLOR: SOLUBILITY:
Crystalline solid. White granular Water solubility - 0.72G/100g H20 at
material. 20 C
EXPLOSION LIMITS: pH: TAP DENSITY:
1500kg/m3
Not applicable. Between 2 and 3.
DECOMPOSITION AUTO-IGNITION FLAMMABILITY (SOLID, GAS):
Non flammable.
TEMPERATURE: TEMPERATURE:
>160 C to form HF and Not applicable.
crystalline NaF.
MOLECULAR WEIGHT: ODOR: BOILING AND MELTING POINT:
Characteristic. Decomposes on heating.
61.99
10. STABILITY AND REACTIVITY
STABILITY: CONDITIONS TO AVOID:
Stable under normal conditions. Heating can release hazardous gases.
HAZARDOUS DECOMPOSITION MATERIALS TO AVOID:
Glass, acids.
PRODUCTS:
Hydrogen fluoride.
11. TOXICOLOGICAL INFORMATION
ACUTE TOXICITY:
LD50/oral/rat = 80 mg/kg.
CHRONIC TOXICITY:
Human experience: Continuous or intermittent exposure to inorganic fluorides can lead
to appreciable accumulation of fluoride in bone, and to the development of
osteosclerosis and other bone changes.
CARCINOGENICITY:
No classified as a human carcinogen.
LOCAL EFFECTS:
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Toxic by inhalation, in contact with skin and if swallowed. The product causes burns to
eyes, skin and mucous membranes. Effects of breathing high concentrations of vapour
may include cough and severe shortness of breath. Effects due to ingestion may include
unconsciousness, asphyxia, vomiting and discomfort in the chest.
12. ECOLOGICAL INFORMATION:
MOBILITY
No data available.
PERSISTANCE/DEGRADABILITY
No data available.
BIOACCUMULATION
No data available.
ECOTOXICITY:
100ppm was lethal to Tinca Vulgaris
Sodium bifluoride is persistent in the aquatic environment and harmful to fish and fish
food organisms.
13. DISPOSAL CONSIDERATIONS:
SAFE AND PREFERRED DISPOSAL METHODS:
Contact manufacturer.
CONTAMINATED PACKAGING:
Contact manufacturer.
14. TRANSPORT INFORMATION
Labels: Corrosive
ADR/RID: Proper shipping name:
Sodium Hydrogen Fluoride
UN NO: 2439
Class: 8
IMDG Page: 8223
IMDG: Proper shipping name:
Sodium Hydrogen Fluoride
Class: 8 Labels: Corrosive
Packaging group: II Subrisk: None
Class: 8
IATA: Proper shipping name:
Sodium Hydrogen Fluoride
UN/ID No: 2439 Labels: Corrosive
Packaging group: II Subrisk: None Packing instruction passenger
air craft.
815 (15kg max per package nett)
Y815 (5kg max per package nett)
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15. REGULATORY INFORMATION
According to National equivalent of EC-Dir.67/548, as amended, the product is labeled
as follows:
: Toxic
T
R25 : Toxic if swallowed.
: Do not breathe dust.
S22
:In case of contact with eyes, rinse immediately with plenty of water and seek
S26
medical advise
: Corrosive.
C
R34 :Causes burns.
:Wear suitable gloves.
S37
16. OTHER INFORMATION
RECOMMENDED USE:
1. Component of electrolyte for tin plating.
2. Laundry sour.
3. Pest control.
4. Leather and other bleaching.
FURTHER INFORMATION
Preparations that contain sodium bifluoride at concentrations >1% shall be considered as
Corrosive and at concentrations of 0.1 - 1.0% as Irritant.
REFERENCES:
1. (CED) Chemical Exchange Directory S.A., Geneva, Switzerland.
2. Unpublished Reports, AEC of SA Ltd, Pelindaba, South Africa, 1993.
DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES:
Although reasonable care has been taken in the preparation of this document, we extend no
warranties and make no representations as to the accuracy or completeness of the information
contained herein, and assume no responsibility regarding the suitability of this information for the
user鈥? intended purposes or for the consequences of its use. Each individual should make a
determination as to the suitability of the information for his or her particular purpose(s).
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