Page 368 - Handbook of Hazardous Chemical Properties

358 SODIUM PHOSPHATE
move to fresh air; if exposure to dust is severe, get medical attention. INGJBTION: give dilute calcium
lactate, lime water, or milk, administer gastric lavage; consult physician; watch for edema of the glottis
and delayed constriction of esophagus. EYES or SKIN: flush with water; Toxicity by Inhalalion
(ThresholdLim‘t Value): Data not available; Short-Tern Inhalation Limits: Data not available; Toxicity
by Ingestion: Grade 3, LD, 50-500 mglkg; Late Toxicity: Data not available; Vqor (Gas) Im*tant
Characteristics: Data not available; Liquid or Solid Irritant Characteristics: Data not available; Odor
Threshold: Data not available.
Fire Hazards - Flash Point : Not flammable; Flanumble Limits in Air (96): Not flammable; Fire
Extinguishing Agents: Not pertinent; Fire Extinguishing Agents Not To Be Used: Not pertinent; Special
Hazardr of Combustion Products: Not pertinent; Behavior in Fire: Not pertinent; Ignition Temperature
: Not flammable; Electrical Hazard: Not pertinent; Burning Rate: Not flammable.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: No
reactions; Stability During Transport: Stable; Neutralizing Agents forAcidr and Caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymeria‘on: Not pertinent.

SODIUM PHOSPHATE
Chemical Designations - Synonyms: “Sodium phosphate” is generic term and includes the following:
(1) monosodium phosphate (MSP; sodium phosphate, monobasic), (2) disodium phosphate @SP;
sodium phosphate dibasic), (3) trisodium phosphate (TSP; sodium phosphate, tribasic), (4) sodium acid
pyrophosphate (ASPP; SAPP; disodium pyrophosphate (TSPP), (6) sodium metaphosphate (insoluble
sodium metaphosphate), (7) sodium trimetaphosphate, and (9) sodium tripolyphosphate (STPP; TPP);
Chemical Fonnula: (1) N-PO,; (2) NaJPO,; (3) Na3P04; (4) Na&PzO,; (5) NqPzO,; (6) (NaPOJ
n; (7) (NaPO,) 3; (8) (NaP03) n NaO; (9) N%P,O,,
Observable Characteristics - Physical State (as shipped): Granular or powdered solid; some may
appear glassy; Color: White; Odor: None.
Physical and Chemical Properties - Physical State at 15 C and I atm.: Solid; Molecular Weight:
Values for anhydrous salt run from 120 to high polymer values; Boiling Point at I am. : Not pertinent
(decomposes); Freezing Point: Not pertinent; Critical Temperature: Not pertinent; Critical Pressure:
Not pertinent; SpecBc Gravity: 1.8-2.5 at 25 “C (solid); Vqor (Gas) Specijic Gravity: Not pertinent;
Ratio ofSpecijic Heats of Vapor (Gas): Not pertinent; Latent Heat of Vqorization: Not pertinent; Heat
of Combustion: Not pertinent; Heat of Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: U.S. Bu. Mines toxic
dust mask; protective gloves; chemical-type goggles; full-cover clothing; Symptoms Following
Exposure: Inhalation of heavy dust may irritate nose and throat. Ingestion may injure mouth, throat,
and gastrointestinal tract, resulting in MUS=, vomiting, cramps and diarrhea; pain and burning in moth
may occur. Contact with eyes produces local irritation; can lead to chronic damage. Contact with skin
produces local irritation; repeated or prolonged contact can lead to dermatitis; General Treatment for
Exposure: If the following measures do not eliminate the symptoms, see a physician. INHALATION:
give large amounts of water or warm salty water to induce vomiting; repeat until vomitus is clear; milk,
eggs, or olive oil may then be given to soothe stomach. EYES: immediately flush with large amounts
of water for at least 15 min., holding eyelids to ensure flushing or entire surface; avoid chemical
neutralizers. SKIN: flush with water; avoid chemical neutralizers; Toxicity by Inhalation (Threshold
Limit Value): Data not available; Short-Tern Inhalation Limits: Data not available; Toxicity by
Ingestion: Data not available; Late Toxicity: Data not available; Vqor (Gas) Irritant Characteristics:
Data not available; Liquid or Solid Im’tant Characteristics: Data not available; Odor Threshold: Data
not available.
Fire Hazards - Flash Point : Not flammable; Flammable Limits in Air (96): Not flammable; Fire
Extinguishing Agents: Not pertinent; Fire Extinguishing Agents Not To Be Used: Not pertinent; Special
Hazardr of Combustion Products: Not pertinent; Behavior in Fire: May melt with the loss of steam;
Ignition Temperature : Not pertinent; Electrical Hazard: Not pertinent; Burning Rate: Not pertinent.
Chemical Reactivity -Reactivity with Water: All variations or grades of this chemical readily dissolve
in water. ASPP and MSP form weakly acidic solutions. TSP forms a strong caustic solution, similar