Product Identification
【Product Name】Sodium phosphate
【Synonyms】Trisodium orthophosphate dodecahydrate
【CAS】7601-54-9
【Formula】Na3PO4
【Molecular Weight】163.94
【EINECS】231-509-8
【RTECS】TC9490000
【RTECS Class】Mutagen
【Merck】12,8808
【Beilstein/Gmelin】13228 (G)

Physical and Chemical Properties
【Appearance】Colorless to white crystalline, odorless solid
【Solubility in water】Soluble
【Melting Point】73.3-76.7
【Density】2.536 g/cm3 (17.5 C)
【Usage】Removing insecticide residues from fruit & inhibiting mold. pH adjust etc

First Aid Measures
【Ingestion】The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
【Inhalation】Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 anist and corticosteroid aerosols.
【Skin】Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes.
【Eyes】Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage
【Storage】Keep containers tightly closed in a well ventilated area away from food products. Keep away from heat and water. If allowed to pick up moisture it will form a hard cake.
【Handling】Avoid creating and breathing dust. Use dustless systems for handling, storage, and clean up so that airborne dust does not exceed the PEL. Use adequate ventilation and dust collection. Practice od housekeeping. Do not permit dust to collect on walls, floors, sills, ledges, machinery, or equipment. Use od personal hygiene practices. Wash hands before eating, drinking, smoking, or using toilet facilities. Promptly remove soiled clothing and wash before reuse. Shower after work using plenty of soap and water.

Hazards Identification
【Inhalation】This material is a dust or may produce dust. Breathing this material may be harmful or fatal. Symptoms may include severe irritation and burns to the nose, throat, and respiratory tract.
【Skin】Can cause severe skin irritation. Symptoms may include redness and burning of skin, and other skin damage.
【Eyes】Can cause permanent eye injury. Symptoms include stinging, tearing, redness, and swelling of eyes. Can injure the cornea and cause blindness.
【Ingestion】Swallowing this material may be harmful or fatal. Symptoms may include severe stomach and intestinal irritation (nausea, vomiting, diarrhea), abdominal pain, and vomiting of blood. Swallowing this material may cause burns and destroy tissue in the mouth, throat, and digestive tract. Low blood pressure and shock may occur as a result of severe tissue injury.
【Hazards】Behavior in fire: May melt with loss of steam. Sodium phosphates
【UN (DOT)】9148

Exposure Controls/Personal Protection
【Personal Protection】US bureau of mines toxic NIOSH approved respirator; protective gloves, chemical-type ggles, full-cover clothing.
【Respirators】Respiratory protection (supplied-air respirator with full facepiece or self-contained breathing apparatus) should be available where these compounds are manufactured or used and should be worn in case of emergency and overexposure.
【Exposure Effects】The toxological properties of this substance have not been fully investigated.
【Exposure limit(s)】Trisodium phosphate:-AIHA Workplace Environmental Exposure Limit: 5 mg/m3 (15-minute STEL)

Fire Fighting Measures
【Fire Fighting】Use appropriate extinguishing media for the suppression of the exposure fire. Contain runoff.
【Fire Potential】Nonflammable.
Accidental Release Measures
【Small spills/leaks】Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent dust cloud. Avoid inhalation of asbestos dust.

Stability and Reactivity
【Incompatibilities】Aluminum, moisture, strong mineral acids.
【Stability】Rapidly absorbs. Water if exposed to moist atmosphere. Dried sodium phosphate.
【Decomposition】When heated to decomposition it emits toxic fumes of sodium oxide and POx.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.

Transport Information
【UN Number】9148
【Hazard Class】9