Table of Contents Page 1. Chemical Product 2 2. Composition and Information on Ingredients 2 3. Hazards Identification 2 4. First Aid Measures 3 5. Fire and Explosion Data 4 6. Accidental Release Measures 5 7. Handling and Storage 5 8. Exposure Controls/ Personal Protection 5 9. Physical and Chemical Properties 6 10. Stability and Reactivity Data 6 11. Toxicological Information 7 12. Ecological Information 7 13. Disposal Considerations 8 14. References 8 15. Appendices 8 16. Revision History 9 Page 1 of 9
1. Chemical Product Product Name: Disodium hydrogen phosphate Chemical name: Phosphoric Acid, disodium salt, dodecahydrate Synonyms: Sodium monohydrogen phosphate dodecahydrate; Monosodium Phosphate dodecahyddrate; Disodium hydrogen orthophosphate dodecahydrate; Disodium hydrogen phosphate dodecahydrate; Disodium monohydrogen phosphate dodecahydrate Chemical Formula: Na 2 HPO 4.12H 2 O 2. Composition and Information on Ingredients Composition: Disodium hydrogen phosphate 100% by weight Toxicological Data on Ingredients: Not applicable 3. Hazards Identification Potential Acute Health Effects: Slightly hazardous in case of skin contact (irritant, permeator), eye contact (irritant), ingestion and inhalation. Potential Chronic Health Effects: CARCINOGENIC EFFECTS: N/A MUTAGENIC EFFECTS: N/A TERATOGENIC EFFECTS: N/A DEVELOPMENTAL TOXICITY: N/A. Repeated or prolonged exposure is not known to aggravate medical condition. Page 2 of 9
4. First Aid Measures General measures: N/A Skin contact: Wash with soap and water and cover the irritated skin with an emollient. Get medical attention if irritation develops. Cold water may be used. Serious skin contact: N/A Eye contact: Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention if irritation occurs. Ingestion: Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight clothing such as a collar, tie, belt or waistband. Serious indigestion: N/A Inhalation: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention. Serious inhalation: N/A Page 3 of 9
5. Fire and Explosion Data Flammability of the Product: Non-flammable Auto-Ignition Temperature: Not applicable Flash points: Not applicable Flammable limits: Not applicable Products of Combustion: N/A Fire Hazards in Presence of Various Substances: Not applicable Explosion Hazards in Presence of Various Substances: Risks of explosion of the product in presence of mechanical impact: N/A Risks of explosion of the product in presence of static discharge: N/A Fire fighting media and Instructions: Not applicable Special Remarks on Fire Hazards: N/A Special Remarks on Explosion Hazards: N/A Page 4 of 9
6. Accidental Release Measures NB: Wear appropriate protective equipment/clothing including gloves before removing any spills. Small spill: Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and dispose of according to local and regional authority requirements. Large spill: If the product is in its solid form: Use a shovel to put the material into a convenient waste disposal container. If the product is in its liquid form: Absorb with an inert material and put the spilled material in an appropriate waste disposal. Finish cleaning by spreading water on the contaminated surface and allow to evacuate through the sanitary system. 7. Handling and Storage Precautions: Do not breathe dust. Keep away from incompatibles such as oxidizing agents, acids, alkalis Storage: Keep container tightly closed in a cool, well-ventilated area 8. Exposure Controls/Personal Protection Airborne Exposure Limits: N/A Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit. Personal Protection: Safety glasses, gloves, lab coat, dust respirator, making sure to use an approved/certified respirator or equivalent. Page 5 of 9
9. Physical and Chemical Properties Physical state and appearance: White solid. (Crystals solid. Granular solid. Translucent solid.) Odour: Odourless Taste: N/A Molecular Weight: 358.2 g/mole ph (1% solution/water): 9.5 [Basic.] Boiling Point: N/A Melting Point: 34 C (93.2 F) - 35 C Critical Temperature: N/A Specific Gravity (Water = 1): 1.5 Vapour Pressure (mmhg): Not applicable Vapour Density: N/A Volatility: N/A Odour Threshold: N/A Water/Oil Distribution Coefficient: N/A Ionicity (in Water): N/A Dispersion Properties: See solubility in water Solubility: Easily soluble in cold water, hot water. Soluble in 3 parts water. Solubility in water: 87.4 g/100 ml water @ 34 o C Insoluble in alcohol. 10. Stability and Reactivity Data Stability: The product is stable Corrosivity: Non-corrosive in presence of glass Instability temperature: N/A Conditions of Instability: Incompatible materials Incompatibles: Reactive with oxidizing agents, acids, alkalis. Loses 12 H2O @ 100 deg. C. Loses 5 moles of water on exposure to air at ordinary temperature. Incompatible with magnesium, alkaloids, antipyrine, chloral hydrate, lead acetate, pyrogallol, resorcinol, strong mineral acids, strong organic acids. Polymerization: Will not occur Page 6 of 9
11. Toxicological Information Toxicity to animals: LD50: N/A. LC50: N/A. Lethal Dose/Conc 50% Kill: LD50 [Mouse] - Route: Intraperitoneal; Dose: 430 mg/kg Effects on humans: Acute potential health effects: Skin: Causes mild skin irritation. May cause dermatitis. Eyes: Causes mild eye irritation. Ingestion: May cause irritation of the digestive tract and may cause purging. It is slowly absorbed. Expected to be a low ingestion hazard for usual industrial handling. Ingestion of large doses may affect behaviour/central nervous system (tetany). However, if a significant amount of phosphate is absorbed, hypophosphataemia will occur. Severe hypophosphataemia may result in hypocalcemia and tetany. Cardiovascular, respiratory, neurologic, and musculoskeletal effects may occur secondary to hypernatraemia, hypophosphataemia, and hypocalcaemia. Inhalation: May cause respiratory tract and mucous membrane irritation. Low hazard for usual industrial handling. Chronic potential health effects: Skin: High and repeated exposure may cause dermatitis MUTAGENIC EFFECTS: N/A TERATOGENIC EFFECTS: N/A DEVELOPMENTAL TOXICITY: N/A Other information: Slightly hazardous in case of skin contact (irritant, permeator), ingestion and inhalation. 12. Ecological Information Ecotoxicity: N/A Page 7 of 9
13. Disposal Considerations Waste Disposal: Waste must be disposed of in accordance with local environmental control regulations. 14. References Sciencelab.com. Material Safety Data Sheet; Disodium hydrogen phosphate, MSDS [Online] 2005 [cited 2012 Oct 31]. Available from: URL: http://www.sciencelab.com/msds.php?msdsid=9925027 Ch.ntu.edu.tw. Material Safety Data Sheet; Disodium hydrogen phosphate, MSDS [Online] 2012 [cited 2012 Oct 31]. Available from: URL: http://www.ch.ntu.edu.tw/~genchem99/msds/exp9/na2hpo4.pdf Cleartech.ca. Material Safety Data Sheet; Disodium hydrogen phosphate, MSDS [Online] 2012 [cited 2012 Oct 31]. Available from: URL: http://www.cleartech.ca/msds/disodiumphos.pdf 15. Appendices N/A Page 8 of 9
16. Revision History Version Number Amendments/ Reasons for change 01 Initial Release Page 9 of 9