Product Identification

Product Name

Sodium phosphate

Synonyms

Trisodium orthophosphate dodecahydrate
Trisodium phosphate dodecahydrate

CAS

7601-54-9

Formula

Na3O4P

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.

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 agonist 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 good housekeeping. Do not permit dust to collect on walls, floors, sills, ledges, machinery, or equipment. Use good 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 goggles, 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