Page 361 - Handbook of Hazardous Chemical Properties

SODIUM CHROMATE. 351
Not pertinent; Critical Pressure: Not pertinent; SpeciJic Gravity: 2.49 at 15 "C (solid); Vapor (Gas)
Density: Not pertinent; Ratio of Specipc Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vaporization: Not pertinent; Heat of Combustion: Not pertinent; Heat of Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Clean work clothing
(must be washed well with water after each exposure): rubber gloves and shoes: where dusty, goggles
and an approved dust respirator. Do NOT use oils, greases, or protective creams on skin; Symptoms
Following Exposure: ingestion of a toxic dose (at least 'A 02.) leads to severe gastroenteric pain,
vomiting, and diarrhea. Possible respiratory difficulties, including failure of respiration. Kidney and
liver injury may also be produced. The lethal oral dose For an adult is approximately 15 gm. Contact
with eyes causes irritation; General Treatment for Exposure: INGESTION: induce vomiting and follow
with gastric lavage, saline cathartics. Fluid therapy, and oxygen. EYES: wash thoroughly with water;
Toxicity by Inhalation (Threshold Limit Value): Not pertinent; Short-Tern Exposure Limits: Not
pertinent; Toxicity by Ingestion: Grade 3, LD,, 50 to 500 mg/kg; Late Toxicity: Data not available;
Vapor (Gas) Initant Characteristics: Non-volatile; Liquid or Solid Irritant Characteristics: Prolonged
exposure to solid or dust may irritate skin, Odor Threshold: Not pertinent.
Fire Hazards - Flash Point : Not flammable but the product will support combustion; Flammable
Limits in Air (56): Not pertinent; Fire Extinguishing Agents: Water; Fire Extinguishing Agents Not To
Be Used: Fire blankets; Special Hazards of Combustion Products: In fire situations, oxygen is liberated
which can increase the intensity of fires; Behavior in Fire: The product melts and then decomposes
giving off oxygen gas that increases the intensity of fires. This product reacts explosively, either as a
solid or liquid with all organic matter and some metals; Ignition Temperaiure : Not pertinent; EZectricul
Hmard: Not pertinent; Burning Rate: Not pertinent.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials:
Chlorates are powerful oxidizing agem and can cause explosions when heated or rubbed with wood,
organic matter, sulfur, and many metals. Even water solutions react in this manner if the solution is
more than 30% concentrated, especially when warm; Stability During Transport: This product begins
decomposing at 572 of with the evolution of oxygen gas. The decomposition may become self-
sustaining. Oxygen liberation will increase the intensity of fires; Neartralizing Agents for Acidr and
Caustics: Not pertinent; Potymrization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

SODIUM CHROMATE
Chemical Designations - synonYms: Neutral sodium chromate, anhydrous; Sodium chromate (VI);
Chemical Fonnula: N~CrO,.
Observable Charasteristics - Physical State (as mnnally shipped): Solid; Color: Yellow; Odor: None.
Physical and Chemical Properties - Physical State at 15 'y: and I atm. :Solid; Molecular Weight: 162;
Boiling Point at I am.: Not pertinent (decomposes); Freezing Point: Not pertinent; Critical
Tempernre: Not pertinent; Critical Pressure: Not pertinent; Specipc Gravity: 2.723 at 25 "C (solid);
Vapor (Gas) Density: Not pertinent; Ratio ofSpecipc Heats of Vqor (GaF): Not pertinent; Latent Heat
of Vaporization: Not pertinent; Heat of Combustion: Not pertinent; Heat ofDecomposition: Not
pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: U. S. Bu. Mines
approved respirator, rubber gloves; chemical safely goggles; rubber apron and sleeves, face shield,
rubber shoes, protective clothing; Symptoms Following Exposure: Inhalation causes irritation and may
ulcerate mucous membranes: continued irritation of the nose may lead to perforation of the septum,
ingestion causes severe circulatory collapse and toxic nephritis, may be fatal. Contact with eyes causes
severe irritation and possible conjunctivitis. Irritates skin and can cause ulcers: if skin is broken,
prolonged contact may cause "chrome sores" (slow-healing, hard-rimmed ulcers), which leave the area
vulnerable lo infection as a secondary effect; General Treatment for Exposure: INHALATION: remove
victim to fresh air: get medical attention. INGESTION: get immediite medical help: if vomiting is not
spontaneous, give an emetic such as soapy water followed by copious water in lake. EYES:
immediately flush with plenty of water for at least 15 min.; consult physician promptly. SKIN:
immediately flush with plenty of water for at least 15 min.; persistent dermatitis should be referred to