1. IDENTIFICATION

Revision Date
September 2005
Product Name
SODIUM FLUOROSILICATE
Other Names
SODIUM SILICOFLUORIDE ; SODIUM HEXAFLUOROSILICATE ;
SODIUM FLUOSILICATE ;
Uses
Fluoridation, laundry sours, opalescent glass, metallurgy (aluminium and beryllium), vitreous enamel frits, insecticides and rodenticides, chemical intermediate, glue, leather and wood preservative, moth repellent, manufacture of pure silicon.
Contact Information
Organisation Location Telephone Ask For
Redox Pty Ltd 2 Swettenham Road
Minto NSW 2566
Australia
+61 2 97333000 Technical Officer
11 Mayo Road
Wiri Auckland 2104
New Zealand
+64 9 2506222
Poison Information Centre Westmead NSW
Australia
131126  
1800-251525
Chemcall Australia 1800-127406  
New Zealand 0800-243622
National Poisons Centre New Zealand 0800-764766  

2. HAZARD IDENTIFICATION

Hazardous according to criteria of NOHSC/ASCC.

Dangerous According to the Australian Code for the Transport of Dangerous Goods.

Classified as Dangerous Goods According to NZS 5433:1999.

TOXIC

Risk Phrases
R23/24/25 Toxic by inhalation, in contact with skin and if swallowed.
Safety Phrases
S1/2 Keep locked up and out of the reach of children.
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
ERMA New Zealand Approval Code
HSR006941
HSNO Hazard Classification
6.1C 6.4A 9.3B

This Material Safety Data Sheet may not provide exhaustive guidance for all HSNO Controls assigned to this substance. The ERMA Web Site should be consulted for a full list of triggered controls and cited regulations.

3. COMPOSITION/INFORMATION ON INGREDIENTS

Ingredients
Chemical Entity CAS Number Proportions (%)
SODIUM FLUOROSILICATE [16893-85-9] > 95

4. FIRST AID MEASURES

Description of necessary measures according to routes of exposure.

Swallowed
Rinse mouth with water and give plenty of water to drink. Do NOT induce vomiting. Seek immediate medical attention.
Eye
Immediately flush eyes with plenty of water holding eyelids open. Seek medical attention.
Skin
Remove contaminated clothing. Flush affected area with plenty of water. Cover the irritated skin with an emollient. Seek immediate medical attention.
Inhaled
Remove victim from exposure to fresh air. If not breathing, apply artificial respiration. If breathing is difficult, give oxygen. Seek immediate medical attention.
Advice to Doctor
Treat symptomatically based on individual reactions of patient and judgement of doctor. NOTE: For advice in an emergency, contact a Poisons Information Centre (Australia 13-11-26 or New Zealand 0800-764-766).
Aggravated medical conditions caused by exposure
Toxic by inhalation, in contact with skin and if swallowed. May cause lung damage if swallowed. Breathing high concentrations of dust may lead to acute poisoning. Severe exposures result in respiratory failure and death.

5. FIRE FIGHTING MEASURES

Extinguishing Media
In case of fire, appropriate extinguishing media include sand, carbon dioxide, powder and water.
Hazards from Combustion Products
Non-combustible solid. Incompatible with oxidizing agents, acids, alkaline materials, iron containing materials, metals and sources of ignition. In the presence of water, contact with metals may produce hydrogen which may form explosive mixtures with air. Contact with acids release fluoric acid. May react with strong mineral acids to liberate hydrogen fluoride (or hydrofluoric acid) which are higly toxic and corrosive.
Special Protective Precautions and Equipment for Fire Fighters
Fire fighters should wear a self contained breathing apparatus and full protective clothing along with protective equipment.
Flammability Conditions
Product is a non-flammable solid.

Additional Information

Hazchem Code
2X

6. ACCIDENTAL RELEASE MEASURES

Emergency Procedures
Personnel involved in the clean up should wear full protective clothing. Eliminate all sources of ignition. Increase ventilation. Avoid generating dust. Do not get water inside containers. Do not allow product to reach drains, sewers or waterways. If the product does enter a waterway, advise the Environmental Protection Authority or your local Waste Management. Use clean, non-sparking tools and equipment.
Methods and Materials for Containment and Clean Up
Contain and sweep/shovel up spills with dust binding material or use an industrial vacuum cleaner. Transfer to a suitable, labelled chemical-waste container and hold for safe disposal.

7. HANDLING AND STORAGE

Precautions for Safe Handling
Ensure an eye bath and safety shower are available and ready for use. Observe good personal hygiene practices and recommended procedures. Wash thoroughly after handling. Take precautionary measures against static discharges by bonding and grounding equipment.
Conditions for Safe Storage (Including Any Incompatibles)
Store in a cool, dry, well-ventilated area. Keep containers tightly closed when not in use. Inspect regularly for deficiencies such as damage or leaks. Protect against physical damage. Store away from incompatible materials including oxidizing agents, acids, alkaline materials, metals, iron containing materials and sources of ignition. Protect from direct sunlight and moisture. Store away from food, drink and animal feeding stuffs. Never add water to this substance. This product has a UN classification of 2674 and a Dangerous Goods Class 6.1 (Toxic) according to The Australian Code for the Transport of Dangerous Goods By Road and Rail.
Container Type
Packaging must comply with requirements of Hazardous Substances (Packaging) Regulations 2001. Store in original packaging as approved by manufacturer.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION

National Exposure Standards
The following exposure standards are recommended; TLV-TWA = 2.5mg/m3 TLV-PEL = 2.5mg/m3
Biological Limit Values
No information available on biological limit values for this product.
Engineering Controls
A system of local and/or general exhaust is recommended to keep employee exposures as low as possible. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area.
Personal Protection
RESPIRATOR: Wear an approved air-supplied respirator where vapours/dusts are formed and engineering controls are inadequate (AS1715/1716). EYES: Chemical safety goggles and face shield (AS1336/1337). HANDS: Rubber gloves (AS2161). CLOTHING: Rubber apron, chemical suit and rubber footwear (AS3765/2210).

9. PHYSICAL AND CHEMICAL PROPERTIES

Appearance
white crystalline powder
Formula
Na2SiF6
Odour
odourless
Vapour Pressure
Not applicable.
Vapour Density
Not applicable.
Boiling Point
Not applicable.
Melting Point
Decomposes deg C
Solubility in Water
0.652g/100mL
Specific Gravity
2.68 (Water = 1)
Flash Point
Not applicable.
pH
Not applicable.
Lower Explosion Limit
Not applicable.
Upper Explosion Limit
Not applicable.
Ignition Temperature
Not applicable.
Specific Heat Value
Not applicable.
Particle Size
Not applicable.
Flame Propagation/Burning Rate of Solid Materials
Not applicable.
Properties of Materials That May Initiate or Contribute to Fire Intensity
Not applicable.
Potential for Dust Explosion
Not applicable.
Reactions that Release Flammable Gases
Contact with water/metals emits hydrogen, may form flammable mixtures with air
Fast of Intensely Burning Characteristics
Not applicable.
Non-flammables That Could Contribute Unusual Hazards to a Fire
water
Release of Invisible Flammable Vapours and Gases
Not applicable.
Decomposition Temperature
Not applicable.
Additional Information
Molecular Weight: 188.06g/mole Solubility: Partially soluble in cold water, more soluble in hot water. Insoluble in alcohol.

10. STABILITY AND REACTIVITY

Chemical Stability
Product is stable under normal conditions of use, storage and temperature.
Conditions to Avoid
Avoid excessive heat, dusty conditions, static discharges, moisture and high temperatures.
Incompatible Materials
Incompatible with oxidizing agents, acids, alkaline materials, metals, iron containing materials and sources of ignition.
Hazardous Decomposition Products
When involved in a fire, this product may generate fluoric acid. In the presence of water, contact with metals can produce hydrogen which may form flammable mixtures with air. May react with strong mineral acids to liberate hydrogen fluoride (or hydrofluoric acid) which are highly toxic and corrosive.
Hazardous Reactions
No data available.

11. TOXICOLOGICAL INFORMATION

Toxicity Data
Oral Mouse LD50: 70mg/Kg. Oral Rat LD50: 125mg/Kg.

Health Effects - Acute

Swallowed
Toxic if swallowed! Severe exposure from ingestion may result in muscular weakness, tremors, convulsions, collapse, dyspnea, cardiac failure and death.
Eye
May cause eye irritation. May cause destruction of eye tissue.
Skin
Toxic in contact with skin! Moisture and perspiration will accelerate tissue destruction. Prolonged skin contact may cause a severe effect, progressing to a delayed burn.
Inhaled
Toxic by inhalation! Breathing high concentrations of dust may lead to acute poisoning. Severe exposure may result in respiratory failure and death.

12. ECOLOGICAL INFORMATION

Ecotoxicity
No data available.
Persistence and Degardability
No information available on persistence/degradability for this product.
Mobility
No information available on mobility for this product.
Environmental Fate (Exposure)
Do not allow product to enter drains, waterways or sewers.
Bioaccumulative Potential
No information available on bioaccumulation for this product.

13. DISPOSAL CONSIDERATIONS

Disposal
Dispose of in accordance with all local, state, and federal regulations.
Special Precautions for Land Fill or Incineration
The waste code classification is to be carried out according to the European Waste Catalogue (EWC) specifically for each branch of industry and each type of process.

14. TRANSPORT INFORMATION

Land Transport

UN Number
2674
Shipping Name
SODIUM FLUOROSILICATE
Dangerous Goods Class
6.1
Subsidiary Risk
Not applicable.
Pack Group
III
Precaution for User
TOXIC
Hazchem Code
2X
Class 61 Diamond

Sea Transport

UN Number
2674
Shipping Name
SODIUM FLUOROSILICATE
Dangerous Goods Class
6.1
Subsidiary Risk
Not applicable.
Pack Group
III
Precaution for User
TOXIC
Hazchem Code
2X
Class 61 Diamond

15. REGULATORY INFORMATION

Classified as hazardous in accordance with Annex I European Directive 67/548/EEC and The Australian Safety and Compensation Council (ASCC).

Poisons Schedule
6
EPG
37
AICS Name
SILICATE(2-), HEXAFLUORO-, DISODIUM
NZ Toxic Substance
3

16. OTHER INFORMATION

Literature References
No data available.
Sources for Data
No data available.

Legend to Abbreviations and Acronyms

<
less than
>
greater than
AICS
Australian Inventory of Chemical Substances
CAS
Chemical Abstracts Service (Registry Number)
cm2
square centimetres
CO2
Carbon Dioxide
COD
Chemical Oxygen Demand
deg C ( 'C )
degrees Celsius
ERMA
Environmental Risk Management Authority
g
gram
g/cm3
grams per cubic centimetre
g/l
grams per litre
HSNO
Hazardous Substance and New Organism
IDLH
Immediately Dangerous to Life and Health
immiscible
liquids are insoluble in each other
kg
kilogram
kg/m3
kilograms per cubic metre
LC50
LC stands for lethal concentration. LC50 is the concentration of a material in air which causes the death of 50% (one half) of a group of test animals. The material is inhaled over a set period of time, usually 1 or 4 hours.
LD50
LD stands for Lethal Dose. LD50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals
ltr
Litre
m3
cubic metre
mbar
millibar
mg
milligram
mg/24H
milligrams per 24 hours
mg/kg
milligrams per kilogram
mg/m3
milligrams per cubic metre
Misc
miscible
miscible
liquids form one homogeneous liquid phase regardless of the amount of either component present
mm
millimetre
mPa.s
milli Pascal per second
N/A
Not Applicable
NIOSH
National Institute for Occupational Safety and Health
NOHSC
National Occupational Health and Safety Commission
OECD
Organization for Economic Co-operation and Development
PEL
Permissible Exposure Limit
ppb
parts per billion
ppm
parts per million
ppm/2h
parts per million per 2 hours
ppm/6h
parts per millionper 6 hours
RCP
Reciprocal Calculation Procedure
STEL
Short Term Exposure Limit
TLV
Threshold Limit Value
tne
tonne
TWA
Time Weighted Average
ug/24H
micrograms per 24 hours
UN
United Nations (number)
wt
weight