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Date of Issue : Mar 2002 1. IDENTIFICATION
General Product Name : POTASSIUM CARBONATE Other Names : POTASH ; PEARL ASH SALT OF TARTAR 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 : 5 Uses : Special glasses (optical and colour TV tubes), potassium silicate, dehydrating agent, pigments, printing inks, soft soaps, raw wool washing, general purpose food additive.
1.1 Physical Description / Properties
Appearance : White deliquescent granular powder with no distinct odour. Formula : K2CO3 Boiling Point : DEC deg C Melting Point : 891 deg C Vapour Pressure : N/A Specific Gravity : 2.4 (water = 1) Flash Point : N/A pH : 11 (0.02 mol/L) Solubility in water : Solub 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
Solubility in water @ 20 deg C = 110.5g/100cc 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
May cause moderate irritation of the nasal, throat, respiratory passages and mouth, oesophagus, and upper digestive tract. Eye
May cause moderate eye irritation upon contact. Skin
Moderately irritating to skin upon contact. Prolonged or repeated skin contact may lead to dermatitis. Not easily absorbed. Inhaled
Moderately irritating to the upper respiratory tract tissues. 2.2 Health Effects - Chronic
Prolonged or repeated skin contact may lead to dermatitis.
2.3 First Aid
Swallowed
If swallowed DO NOT induce vomiting. If vomiting occurs spontaneously, seek medical attention immediately.
Eye
Immediately flush eyes with plenty of water for at least 15 minutes holding eyelids apart to ensure flushing of the entire eye surface. Seek medical attention.
Skin
Wash contaminated areas thoroughly with plenty of soap and water. Remove contaminated clothing and footwear. Wash clothing before reuse and discard footwear which cannot be decontaminated. Seek medical attention if irritation occurs/persists.
Inhaled
Get person out of contaminated area to fresh air. Seek 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
Oral LD50 = 1.87 g/kg (rat)
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
No exposure limit has been established for this product by Worksafe , however the following exists for nuisance dust : TWA 10 mg/m3.
3.2 Engineering Controls
Good industrial hygeine practice dictates that the work area should be contained and provided with adequate local exhaust or mechanically-induced general ventilation to prevent irritation of the eyes, skin and respiratory tract.
3.3 Personal Protection
Respiratory protection - wear an approved respirator for dusts and mists. Eye protection - wear chemical splash goggles. Skin protection - wear rubber, PVC or plastic gloves to minimise skin contact. Other clothing and equipment - wear hard hats, chemical-resistant or rubber shoes and protective clothing should be worn when handling Potassium carbonate.
3.4 Flammability
Material is not combustible and will not burn. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Since the product is very hygroscopic, the best possible storage conditions should be provided. Damp floors, leaking and moist storage conditions must be avoided. Moisture absorption will cause lumping of the product and reduction in alkalinity. Use on 'first in - first out' basis.
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 POTASSIUM CARBONATE Hazard HARMFUL
Risk Phrases R22 Harmful if swallowed. R36 Irritating to eyes.
Safety Phrases S22 Do not breathe dust. S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
4.3 Spills and Disposal
Spills
Clean up personnel should wear full protective clothing including breathing equipment if dusty conditions prevail.
Stop leaks. Contain spill. Remove as much as possible (e.g shovel up or remove by vacuum truck, if liquid), place in clsoed, labelled containers and' store in a safe place to await proper disposal. Wash spill area with large amounts of water to remove final traces. Persons performing this work should wear adequate personal protective equipment and clothing.
Disposal
Reuse spilled material, if possible, otherwise dispose in accordance with all federal, state and local health and pollution regulations. Dispose via a licensed chemical waste hauler.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Material will not burn or explode. Avoid simultaneous presence of Potassium Carbonate and Lime dust (CaO). The combination of these two chemicals in the presence of water or perspiration will cause the formation of irritating caustic potash (potassium hydroxide). Hazardous decomposition products are not expected. Hazardous polymerisation is not expected.
Extinguishing Media
Fire-fighters should wear full protective clothing including self-contained breathing apparatus. Use water fog, dry chemical, foam or carbon dioxide in areas where this product is stored. Use equipment/media appropriate to surrounding 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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