|
|
Date of Issue : Jan 2001 1. IDENTIFICATION
General Product Name : TETRASODIUM PYROPHOSPHATE Other Names : SODIUM PYROPHOSPHATE NORMAL ; TSPP DIPHOSPHORIC ACID. TETRASODIUM SALT, PYROPHOSPHORIC ACID 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 : Water softener, soap and synthetic detergent builder, dispersing & emulsifying agent, metal cleaner, boiler water treatment, viscosity control of drilling muds, de-inking news print, synthetic rubber manufacture, textile dyeing, scouring of wool, buffer, sequestrant, nutrient supplement, food additive.
1.1 Physical Description / Properties
Appearance : White powder or granules, odourless, hygroscopic, colourless transparent crystals. Formula : Na4P2O7 Boiling Point : Decom deg C Melting Point : 880 deg C Vapour Pressure : N/A Specific Gravity : 2.34 (water = 1) Flash Point : N/A pH : 10.44 (1% solution) Solubility in water : 5.5 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
Decomposes (loses water) above 94 deg C. Soluble in water, insoluble in alcohol and ammonia. 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Causes nausea, vomiting and diarrheoa Eye
The dust of this material may cause eye irritation. Skin
Frequent or prolonged exposure to powder may be slightly irritative. Can cause redness on the skin. Inhaled
Dust and mist may be irritating to nose and throat, causing coughing and choking. 2.2 Health Effects - Chronic
No mutagenic effects were reported in microbial assays using 3 Salmonella strains & 1 strain of Saccharomyces yeast, with and without mammalian microsomal activation. No teratogenic, fetotoxic, or maternal toxic effects were observed in mice and rats administered tetrasodium pyrophosphate at 130 mg/kg and 138 mg/kg, respectively, on days 6 through 15 of gestation. Dermatitis may develop from repeated or prolonged skin contact. Carcinogenicity - No information available. Tetragenicity and Embryotoxicity - No data available. Not a reproductive hazard. Mutagenicity - No data available. Potential for accumulation - Not expected to accumulate. Phosphates are normally found in the body and are readily absorbed and excreted.
2.3 First Aid
Swallowed
Contact a doctor or . DO NOT induce vomiting. Drink 1 - 3 cups of water or milk. Obtain medical attention.
Eye
Flush eyes with copious amounts of water for at least 15 minutes, retracting eyelids often. If irritation persists seek medical attention.
Skin
Wash affected areas thoroughly with copious amounts of water. If irritation persists seek medical attention.
Inhaled
Remove person from contaminated area, avoid becoming casualty. If condition persists seek medical attention immediately. If no 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. All first aid procedures should be periodically reviewed by a physican familiar with the material and its condition of use in the workplace.
2.5 Advice to Doctor
Product is not a cholinesterase inhibitor. Treat symptomatically based on judgement of doctor and individual reations of patient.
2.6 Toxicity Data
Oral LD50 = 4000 mg/kg (rat) for ingestion Dermal LD%) = 400 mg/kg (rabbit) - skin irritation after prolonged use Dust may be irritating to eyes. Irritation of the throat and nose, causing coughing and chest discomfort. This material is not considered to be carcinogen or mutagen, with no reproductive effects identified. Phosphate will promote algae growth and may degrade water quality.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
TWA = 5 mg/m3 (Worksafe)
3.2 Engineering Controls
Provide ventilation to control exposure levels below airborne exposure limits. Use local mechanical exhaust ventilation at sources of air contamination such as open process equipment.
3.3 Personal Protection
Respiratory protection - If use conditions generate dusts, wear an approved respirator aoppropriate for those emission levels. Appropriate respirators may be a full facepiece or half mask air purifying respirator. Eye/face protection - Wear chemical safety goggles unless a full facepiece respirator is also worn. Skin protection - Wear rubber gloves . Protective clothing - No specific information is available. Most materials used for chemical protective clothing may be adequate. Personal hygiene - Is an important work practice, Do not store, use or consume foods, beverages, tobacco products or cosmetics in areas where this material is stored. Wash hands and face carefully before eating, drinking, using tobaacco or applying cosmetics or using the toilet. Wash exposed skin promptly to remove accidental splashes of contact with this material.
3.4 Flammability
Material will not burn. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Transport or store in a cool, dry place away from direct heat and sunlight. Store in tightly closed containers. Keep away from incompatible materials. Protect containers from damage or breakage. For handling, follow routine safe practices. Avoid generating dust or mist. Prevent contact with eyes, skin, or clothing. Wash thoroughly after handling and remove contaminated clothing and launder before re-use.
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 TETRASODIUM PYROPHOSPHATE Hazard IRRITANT
Risk Phrases R36/38 Irritating to eyes and skin.
Safety Phrases S24/25 Avoid contact with skin and eyes.
4.3 Spills and Disposal
Spills
Avoid raising dust. Wear suitable protective equipment.
Small spills - mop up with plenty of water. Large spills - collect and reuse material if possible. If not collect and hold in appropriate drums for waste disposal. Add slowly to a large container of water. Stir in a slight excess of soda ash. If fluoride is present add slaked lime. Let stand for 24 hours and decant or siphon into another container, neutralise with hydrochloric acid.
Disposal
Dispose of in accordance with all Local, State and Federal regulations at an approved waste disposal site. Keep out of sewers, storm drains, surface waters and soil.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Material will not burn or explode. Is incompatible with acids and calcium salts. When heated to decomposition it emits toxic fumes of POx. Corrosivity to metals - May be mildly corrosive to steel and aluminium.
Extinguishing Media
Use equipment appropriate to surrounding fire conditions. Use water type extinguishers or as for other chemicals present. 5 OTHER INFORMATION
Other Information
No data available
5.1 Contact Points
|
|||||||||||||||||||||||
|
|
|||||||||||||||||||||||
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.
|
|||||||||||||||||||||||
|
|
 |