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Date of Issue : Oct 1997 1. IDENTIFICATION
General Product Name : BARIUM SULPHATE Other Names : BARIUM SULPHATE ; BARYTES (NATURAL) ; BASOFOR BLANC FIXE (ARTIFICIAL, PRECIPITATED) UN No. : N/A Dangerous Goods Class : None Allocated Subsidiary Risk : None Allocated Hazchem Code : N/A Pack Group : 0 EPG : N/A Poisons Schedule : N/A Uses : Weighting mud in oil-drilling, paper coatings, paints, filler and delustrant for textiles, rubber, plastics and lithograph inks, base for lake colours, x-ray photography, opaque medium for gastrointestinal radiography, in battery plate expanders.
1.1 Physical Description / Properties
Appearance : White, or yellowish odourless, tasteless powder. Formula : BaSO4 Boiling Point : N/A deg C Melting Point : 1580 deg C Vapour Pressure : N/A Specific Gravity : 4.3 (water = 1) Flash Point : Test Unknown 1600 pH : 10 (150 g/L) Solubility in water : N/A 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
No data available 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
No hazard expected in normal industrial use. Eye
Dust may cause mechanical irritation. Skin
Dust may cause mechanical irritation. Inhaled
No hazard expected in normal industrial use. 2.2 Health Effects - Chronic
Repeated exposure may cause baritosis, a benign condition characterised by the deposition of particulate matter in the lung.
2.3 First Aid
Swallowed
If victim is conscious and alert, give 2-4 cupfuls of milk or water to drink. Seek medical attention immediately.
Eye
Immediately flush eyes with plenty of water for at least 15 minutes, lifting the upper and lower lids. Seek medical attention.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Inhaled
Remove from exposure to fresh air immediately. Seek medical attention.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
There is no specific antidote. Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
Oral LD50 = not available Dermal LD50 = not available Inhalation LC50 = not available Not listed as a carcinogen by ACGIH, IARC, NIOSH, NTP or OSHA.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
Worksafe recommends the following exposure limit : Barium Sulphate : TWA 10 mg/m3 STEL - mg/m3 This value is for inspirable dust containing no asbestos and less than 1% crystalline silica.
3.2 Engineering Controls
Ensure adequate general or local exhaust ventilation to maintain airborne concentrations below exposure limits.
3.3 Personal Protection
Wear appropriate protective eyeglasses or chemical safety goggles to prevent eye contact. Wear impervious gloves. Wear appropriate protective clothing to minimise skin contact. Wear appropriate breathing apparatus according to risk of exposure and airborne concentrations. Wash hands and face thoroughly after handling and before work breaks, eating, drinking, smoking and using toilet facilities. Minimise dust generation and accumulation.
3.4 Flammability
Noncombustible. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Store in a cool, dry, well-ventilated area away from incompatible materials. No special precautionary measures required.
4.2 Packaging / Labelling UN No. N/A Class None Allocated Sub Risk None Allocated Hazchem Code N/A Pack Group 0 EPG No. N/A Shipping Name BARIUM SULPHATE Hazard HARMFUL
Risk Phrases R20/22 Harmful by inhalation and if swallowed.
Safety Phrases S28:BASULP After contact with skin, wash immediately with plenty of soap and water.
4.3 Spills and Disposal
Spills
Clean-up personnel should wear full protective clothing including breathing apparatus in dusty conditions. Avoid generating dust.
Vacuum or sweep up spills and place into a suitable container for reuse or disposal. Wash spill site residues with copious quantities of water.
Disposal
Dispose of in accordance with all Local, State and Federal regulations at an approved waste disposal facility.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Material is stable at room temperature in closed containers under normal storage and handling conditions. Avoid the generation of dusts. Incompatible with aluminium + heat. Hazardous decomposition products include oxides of sulphur, and barium fumes. Hazardous polymerisation has not been reported.
Extinguishing Media
Fire-fighters should wear full protective clothing including self-contained breathing apparatus. Use equipment/media appropriate to surrounding fire conditions. 5 OTHER INFORMATION
Other Information
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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