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Date of Issue : OCT 1996 1. IDENTIFICATION
General Product Name : POISONOUS LIQUID, N.O.S. (SODIUM SILICOFLUORIDE SLURRY) Other Names : SODIUM SILICOFLUORIDE ; SODIUM HEXAFLUOROSILICATE UN No. : 2810 Dangerous Goods Class : 61b Subsidiary Risk : None Allocated Hazchem Code : 2XE Pack Group : III EPG : 6B3 Poisons Schedule : 6 Uses : Fluoridation of water.
1.1 Physical Description / Properties
Appearance : White slurry, odourless.ý Formula : Na2SiF6 Boiling Point : N/A deg C Melting Point : N/A deg C Vapour Pressure : N/A Specific Gravity : N/A (water = 1) Flash Point : N/A pH : N/A () Solubility in water : 6.4 g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Partially soluble in cold water, more soluble in hot water, insoluble in alcohol 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Poisonous if swallowed. May cause death. Eye
Irritation. Prolonged contact may damage the eyes. No permanent damage is expected if treated immediately. Skin
Irritation especially if moisture or perspiration is present. May cause ulceration from prolonged or repeated contact. Inhaled
Not expected to be a route of exposure, however may cause irritation and/or death. 2.2 Health Effects - Chronic
This material is not considered to be a carcinogen or mutagen. No reproductive effects have been identified.
2.3 First Aid
Swallowed
If conscious, immediately induce vomiting. Obtain medical attention. Do not hesitate to hospitalise.
Eye
Immediately flush with plenty of water for at least 15 minutes. Obtain medical attention.
Skin
Immediately flush skin with plenty of water and soap. Remove contaminated clothing and shoes. Wash clothing before reuse. Obtain medical attention if irritation persists after washing.
Inhaled
Remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen. Obtain medical attention.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
No information available in slurry form, however following figures are based on the material in powder form : Oral LD50 = 125 mg/kg (Rat) ; 70 mg/kg (Mouse) ; 125 mg/kg (Rabbit)
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
The following exposure standards are recommended for product in powder form : Fluorides (as F) TWA = 2.5 mg/m3 (Worksafe )
3.2 Engineering Controls
Provide local mechanical exhaust ventilation capable of maintaining dust levels below standards.
3.3 Personal Protection
Respiratory - is use conditions generate dusts, wear an approved respirator appropriate for those emission levels. Appropriate respirators may be a full face-piece or a half mask air-purifying cartridge respirator with particulate filters, a self-contained breathing apparatus in the pressure demand mode or a supplied-air respirator Hands/Skin - wear rubber gloves. Wear long-sleeved shirt, trousers, safety shoes and rubber apron. Eyes - wear chemical goggles unless a full face-piece respirator is also worn.
3.4 Flammability
Material is non-flammable. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Store in a cool, dry, well-ventilated area away from incompatible materials. Keep bags dry at all times. DO NOT store near food or feed products. Store in accordance with all Dangerous Goods regulations applicable to Class 6.1 products. Avoid acids, cyanides and active metals such as aluminium or magnesium.
4.2 Packaging / Labelling UN No. 2810 Class 61b Sun Risk None Allocated Hazchem Code 2XE Pack Group III EPG No. 6B3 Shipping Name POISONOUS LIQUID, N.O.S. (SODIUM SILICOFLUORIDE SLURRY) Hazard 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 reach of children. S26 In case of contact with eyes, rinse immediately with plenty of water and contact a doctor or . S44 If you feel unwell, contact a doctor or immediately (show the label where possible).
4.3 Spills and Disposal
Spills
Remove all unnecessary personnel from spill area.
Disposal
Dispose of in accordance with all Local, State and Federal regulations at an approved waste disposal facility. Empty containers can have residues, gases and mists and are subject to proper waste disposal as above.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Will not burn or explode. May liberate hydrogen gas from contact with some metals. May also liberate hydrogen fluoride or silicon tetrafluoride. Avoid contact with acids, cyanides and active metals such as aluminium or magnesium. In the presence of water, contact with some metals produces hydrogen which may form flammable mixtures with air.
Extinguishing Media
Evacuate area - move upwind of fire. Summon Fire Brigade immediately, dial 000. DO NOT use water on material itself. Use media/equipment appropriate to surrounding fire conditions (dry chemical, carbon dioxide, dry sand). Fire fighters should wear a self-contained breathing apparatus and full impermeable protective clothing. 5 OTHER INFORMATION
Other Information
Material produces severe plant damage. Highly toxic to foliage. DO NOT allow product to enter sewers, storm drains, surface waters or soil. Aquatic Toxicity - no data available
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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