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Date of Issue : Apr 2000 1. IDENTIFICATION
General Product Name : POTASSIUM PYROPHOSPHATE Other Names : TETRAPOTASSIUM PYROPHOSPHATE ; TKPP POTASSIUM PYROPHOSPHATE NORMAL ; POTASSIUM DIPHOSPHATE 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 : Soap and detergent builder, sequestering agent, peptising and dispersing agent.
1.1 Physical Description / Properties
Appearance : White microcrystalline powder. Formula : K4P2O7.3HOH Boiling Point : N/A deg C Melting Point : 1090 deg C Vapour Pressure : N/A Specific Gravity : 2.33 (water = 1) Flash Point : N/A pH : N/A () Solubility in water : 1760 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
Product is deliquescent at relative humidity of above 40-45%. Product dehydrates at about 300 deg C. Hygroscopic. 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
May be harmful by ingestion. Eye
Irritating to eyes. Skin
Irritating to skin. May be harmful by skin absorption. Inhaled
Irritating to mucous membranes and upper respiratory tract. May be harmful by inhalation. 2.2 Health Effects - Chronic
No significant health effects have been identified.
2.3 First Aid
Swallowed
DO NOT induce vomiting. Allow victim to rinse mouth thoroughly with water then drink 1 - 3 cups of water. Seek medical attention.
Eye
Immediately flush eyes with plenty of water for at least 15 minutes, lifting the upper and lower lids. If irritation persists seek medical attention.
Skin
Flush skin thoroughly with soap and water for at least 15 minutes whilst removing contaminated clothing and shoes. If irritation persists seek medical attention.
Inhaled
Remove from exposure to fresh air immediately. If effects occur/persist seek medical attention.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
Product is a stable inorganic chemical with no major significant hazards. Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
Dermal (rabbit) LD50: >4650 mg/kg. Not listed as a carcinogen by ACGIH, IARC, NIOSH, NTP or OSHA.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
No exposure standard has been established for this product however the following is recommended for nuisance dust : TWA = 10 mg/m3.
3.2 Engineering Controls
Ensure adequate ventilation to maintain exposure levels below standards, including the use of general or local exhaust ventilation.
3.3 Personal Protection
Respirator - wear an approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. Eyes - wear safety glasses and chemical goggles if splashing is possible. Skin - wear appropriate protective gloves and clothing to minimise exposure. Wash hands and face thoroughly after handling and before work breaks, eating, drinking, smoking and using toilet facilities.
3.4 Flammability
Material will not burn. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Store in a cool dry place away from direct heat. Keep container closed when not in use. Avoid storage with incompatible materials such as strong oxidants.
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 PYROPHOSPHATE Hazard IRRITANT
Risk Phrases R36/37/38 Irritating to eyes, respiratory system and skin.
Safety Phrases S24/25 Avoid contact with skin and eyes. S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 Wear suitable protective clothing.
4.3 Spills and Disposal
Spills
Clean up personnel should wear full protective clothing including breathing apparatus. Avoid raising dust.
Sweep up material, place into suitable containers and hold for waste disposal. Wash spill site with copious amounts of water after initial pickup is complete.
Disposal
For small quantities - catiously add to a large stirred excess of water. Adjust pH to neutral, separate and insoluble solids or liquids and pakcage them for hazardous waste disposal. Flush the aqueous solution down the drain with plenty of water. The hydrolysis and neutralisation reactions may generate heat and fumes which can be controlled by the rate of addition. Observe all local, state, and federal regulations.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Material will not burn or explode. Stable under normal temperatures and pressures. Incompatible with strong oxidants. Hazardous decomposition products include phosphine, oxides of phosphorus, irritating and toxic fumes and gases. Hazardous polymerisation has not been reported.
Extinguishing Media
Fire-fighters should wear full protective clothing including self-contained breathing apparatus. Use equipment/extinguishing media appropriate to surrounding fire conditions. 5 OTHER INFORMATION
Other Information
No information 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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