Page 359 - Handbook of Hazardous Chemical Properties

SODIUM BOROHYDRIDE 349

Observable Characteristics - Physical State (as normally shipped): Solid; Color: White; Odor: None.
Physical and Chemical Properties - Physical State at 15 C and I m. : Solid; Molecular Weight:
201.26; Boiling Point at I atm.: Not pertinent (decomposes); Freezing Point: Not pertinent; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 2.367 at 20 "C (solid);
Vapor (Gas) Density: Not pertinent; Ratio ofgecific 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: Dust mask and goggles
or face shield; Symptoms Following Exposure: No adverse effects from inhaling borax have been
reported. Ingestion may cause acute or chronic effects: initial symptoms are nausea, vomiting, and
diarrhea: these may be followed by weakness, depression, headaches, skin rashes, drying skin, cracked
lips, and loss of hair; shock may follow ingestion of large doses and may interfere with breathing. Eye
contact with powder or solutions may cause irritation; no chronic effects have been recognized, but
continued contact should be avoided. Local skin irritation may result from contact with powder or
strong solutions: the latter may cause chronic dermatitis on prolonged contact, and if skin is broken.
enough boron may be absorbed lo cause boron poisoning (symptoms are similar to those for ingestion);
General Treatment for Exposure: INHALATION: move to fresh air: call physician immediately; give
mouth-to-mouth resuscitation if breathing has ceased give oxygen if authorized by physician: keep
victim warm. INGESTION: get medical attention quickly: if victim is conscious, give warm salty or
soapy water to induce vomiting: repeat until vomitus is clear: additional water may be given lo wash
out stomach. EYES: get medical attention quickly: Hush with copious amounts of water for at least 15
min. (30 min. if physician is not available), holding eyelids apart. SKIN: Hush with water: remove
contaminated clothing under shower: do not use chemical neulralizers: get medical attentionunless bum
is minor; Toxicity by Inhalation (Threshold Limit Value): Data not available; Short-Tern Exposure
Limits: Data not available; Toxicity by Ingestion: Grade 2, LD, 0.5-5 gkg; Lute Toxicity: Data not
available; Vapor (Gas) Irritant Characteristics: Data not available; Liquid or Solid Irritant
Characteristics: Data not available; Odor Threshold: Data not available.
Fire Hazards - Flash Point : Not flammable; Flammable Limits in Air (9%): Not flammable; Fire
Extinguishing Agents: Not pertinent; Fire Exn'nguishing Agents Not To Be Used: Not pertinent; Special
Hazard of Combustion Products: Not pertinent; Behavior in Fire: The compound melts into a glassy
material that may flow in large quantities and ignite combustible materials it comes in contact with;
Ignition Temperature : Not pertinent; Electrical Hazard: Not pertinent; Burning Rate: Not pertinent.
chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: No
reactions; Stability During Transport: Stable; Neut@izingAgentsfirAci& and Caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymeriurtion: Not pertinent.

SODIUM BOROHYDRIDE
Chemical Designations - Synonyms: No common synonyms; Chemical Formula: NaBq.
Observable Characteristics - Physical State (as normally shipped): Solid or solution in caustic; Color:
White; Odor: Odorless.
Physical and Chemical Properties - Physical State at 15 C and 1 am. :Solid; Molecular Weight:
37.83; Boiling Point at I am.: Decomposes; Freezing Point: Not pertinent; Critical Temperature: Not
pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.074 at 20 "C (solid); Vapor (Gas)
Density: Not pertinent; Ratio of Specific Heats of Vqor (Gas): Not pertinent; Larent Heat of
Vaporization: Not pertinent; Heat ofcombustion: Not pertinent; Heat ofDecomposition: Not pertinent.
HealthHazards Information - Recommended Personal Protective Equipment: Goggles, rubber gloves,
and protective clothing; Symptoms Following Exposure: Solid irritates skin If ingested can form large
volume of gas and lead to a gas embolism; General Treatment for Exposure: INGESTION: do NOT
induce vomiting: give dilute vinegar, lemon juice, milk. or olive oil: call a doctor. SKIN AND EYES:
flood with large amount of water; Toxicity by Inhalotion (Threshold Limit Value): Not pertinent; Short-
Term Exposure Limits: Not pertinent; Toxicity by Ingestion: Violent reaction with acid in stomach.
Considered toxic because of boron content; Lare Tan'city: Data not available; Vapor (Gas) Irritant