MATERIAL SAFETY DATA SHEET

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

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

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