NTP CHEMICAL REPOSITORY (RADIAN CORPORATION, AUGUST 29, 1991)
IDENTIFIERS
CATALOG ID NUMBER: 001237
CAS NUMBER: 7440-39-3
BASE CHEMICAL NAME: BARIUM
PRIMARY NAME: BARIUM
CHEMICAL FORMULA: Ba
STRUCTURAL FORMULA:
WLN: BA
SYNONYMS:
PHYSICAL CHEMICAL DATA
PHYSICAL DESCRIPTIONS: Literature: Yellow-white, slightly lustrous lumps.
MOLECULAR WEIGHT: 137.34
SPECIFIC GRAVITY: 3.51 at 20 C degrees
DENSITY:Not available
MP (DEG C): 725
BP (DEG C): 1640
SOLUBILITIES:
WATER : Not available
DMSO : Not available
95% ETHANOL : Not available
METHANOL : Not available
ACETONE : Not available
TOLUENE : Not available
OTHER SOLVENTS: Alcohol: Soluble.
BENZENE: Insoluble.
VOLATILITY : Vapor pressure: 10 mm/hg at 1049 C degrees.
FLAMMABILITY(FLASH POINT): Not available
UEL: Not available LEL: Not available
REACTIVITY:
Reacts violently with acids, water, carbon tetrachloride,
C2Cl2F3, C2H2FCl3, C2Cl4 and C2HCl3.
STABILITY: Not available
OTHER PHYSICAL DATA:
Decomposes in cold and hot water, evolves H2.
Valence 2. Body-centered cubic structrue.
Somewhat malleable and very easily oxidized.
TOXICITY
NIOSH REGISTRY NUMBER: CQ8390000
TOXICITY:
Not available
AQTX/TLM96: Not available
SAX TOXICITY EVALUATION: THR: Poisonous when taken by mouth.
CARCINOGENICITY: Not available
MUTAGENICITY: Not available
TERATOGENICITY: Not available
STANDARDS, REGULATIONS & RECOMMENDATIONS:
OSHA: None
ACGIH: None
NIOSH Criteria Document: None
NFPA Hazard Rating: Health (H): None
Flammability (F): None
Reactivity (R): None
OTHER TOXICITY DATA:
Status: "NIOSH Manual of Analytical Methods" Vol. 3, s198; Vol. 5, 173;
Vol. 7, 351.
Reported in EPA TSCA Inventory, 1980
OTHER DATA (Regulatory)
PROPER SHIPPING NAME (IATA): Barium
UN/ID NUMBER: UN1400
HAZARD CLASS: 4.3 SUBSIDIARY RISK: None PACKING GROUP: II
LABELS REQUIRED: Dangerous when wet
PACKAGING: PASSENGER: PKG. INSTR.: 415, Y415 MAXIMUM QUANTITY: 15 kg, 5 kg
CARGO : PKG. INSTR.: 417 MAXIMUM QUANTITY: 50 kg
SPECIAL PROVISIONS: None
USES:
Carrier for radium. Alloys of barium with Al or Mg
are used as getters in electronic tubes.
COMMENTS:
An alkaline earth metal. Occurs in barite and witherite.
First prepared by Davy in 1808. Industrial preparation from
barium oxide: Pidgeon, "Barium". Must be kept under petroleum
or otheer oxygen free-liquid to exclude air. E(aq) Ba2+/Ba -2.91V
CAUTION: All water or acid soluble barium compounds are poisonous.
HANDLING PROCEDURES
ACUTE/CHRONIC HAZARDS:
Radiation hazard. Fire hazard: Dangerous and explosive in form
dust when exposed to heat of flame or by chemical reaction.
Flamable at room temperature. Also see reactivity.
MINIMUM PROTECTIVE CLOTHING: Not available
RECOMMENDED GLOVE MATERIALS:
Permeation data indicate that latex gloves may provide protection from
contact with this compound. Latex over latex gloves is recommended. However,
if this chemical makes direct contact with your gloves, or if a tear, hole or
puncture develops, remove them at once.
RECOMMENDED RESPIRATOR:
Where the neat test chemical is weighed and diluted, wear a NIOSH-
approved half face respirator equipped with an organic vapor/acid gas
cartridge (specific for organic vapors, HCl, acid gas and SO2) with a
dust/mist filter.
OTHER: Not available
STORAGE PRECAUTIONS:
You should protect this chemical from exposure to air and light,
and store it under freezer conditions.
SPILLS AND LEAKAGE:
If you should spill this chemical, use absorbent paper to pick up
all liquid spill material. Seal the absorbent paper, as well as any
of your clothing which may be contaminated, in a vapor-tight plastic
bag for eventual disposal. Wash any surfaces you may have contaminated
with a strong soap and water solution. Do not reenter the contaminated
area until the Safety Officer (or other responsible person) has verified
that the area has been properly cleaned.
DISPOSAL AND WASTE TREATMENT:
You should dispose of all waste and contaminated materials
associated with this chemical as specified by existing local,
state and federal regulations concerning hazardous waste disposal.
It is suggested that your contaminated materials should be destroyed
by incineration in a special, high temperature ( >2000 degrees F),
chemical incinerator facility.
EMERGENCY PROCEDURES
SKIN CONTACT:
IMMEDIATELY flood affected skin with water while removing and isolating
all contaminated clothing. Gently wash all affected skin areas thoroughly
with soap and water.
If symptoms such as redness or irritation develop, IMMEDIATELY call a
physician and be prepared to transport the victim to a hospital for treatment.
INHALATION:
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air.
If symptoms (such as wheezing, coughing, shortness of breath, or burning in
the mouth, throat, or chest) develop, call a physician and be prepared to
transport the victim to a hospital.
Provide proper respiratory protection to rescuers entering an unknown
atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA)
should be used; if not available, use a level of protection greater than or
equal to that advised under Respirator Recommendation.
EYE CONTACT:
First check the victim for contact lenses and remove if present. Flush
victim's eyes with water or normal saline solution for 20 to 30 minutes while
simultaneously calling a hospital or poison control center.
Do not put any ointments, oils, or medication in the victim's eyes without
specific instructions from a physician.
IMMEDIATELY transport the victim after flushing eyes to a hospital even if
no symptoms (such as redness or irritation) develop.
INGESTION:
Some heavy metals are VERY TOXIC POISONS, especially if their salts are
very soluble in water (e.g., lead, chromium, mercury, bismuth, osmium, and
arsenic). IMMEDIATELY call a hospital or poison control center and locate
activated charcoal, egg whites, or milk in case the medical advisor recommends
administering one of them. Also locate Ipecac syrup or a glass of salt water
in case the medical advisor recommends inducing vomiting. Usually, this is
NOT RECOMMENDED outside of a physician's care.
If advice from a physician is not readily available and the victim is
conscious and not convulsing, give the victim a glass of activated charcoal
slurry in water or, if this is not available, a glass of milk, or beaten egg
whites and IMMEDIATELY transport victim to a hospital.
If the victim is convulsing or unconscious, do not give anything by mouth,
assure that the victim's airway is open and lay the victim on his/her side with
the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport
the victim to a hospital.
SYMPTOMS:
Dermatitis, depilation, dizziness, nausea, vomiting, colic, diarrhea,
rapid respiration, hypertension, irregular heart action, cyanosis,
muscular weakness, tremor, lumberpain, conufulsions and paralysis.
FIREFIGHTING:
A fire in your laboratory involving this chemical should be
extinguished with a dry chemical, carbon dioxide or halon extinguisher.
SOURCES
SOURCES:
Occupational Safety and Health Administration. Tentative
OSHA Listing of Confirmed and Suspected Carcinogens by
Category. Occupational Safety and Health Administration.
Washington, DC. 1979. Not listed
Aldrich Chemical Company. Aldrich Catalog/Handbook of Fine
Chemicals. Aldrich Chemical Co., Inc. Milwaukee, WI.
1980. Not listed
Oak Ridge National Laboratory. Environmental Teratogen Information
Center (ETIC), Bibliographic Data Base. Oak Ridge National
Laboratory. Oak Ridge, TN. Listed
Oak Ridge National Laboratory. Environmental Mutagen Information
Center (EMIC), Bibliographic Data Base. Oak Ridge National
Laboratory. Oak Ridge, TN. Listed
Steere, N.V., Ed. Handbook of Laboratory Safety. 2nd Ed.
CRC Press, Inc. Cleveland, OH. 1971. p. 728-9, 86
U.S. Environmental Protection Agency, Office of Toxic Substances.
Toxic Substances Control Act Chemical Substances Inventory,
Initial Inventory. 6 Vols. U.S. Environmental Protection
Agency. Washington, D.C. 1979. Listed
Proctor, N.H. and J.P. Hughes. Chemical Hazards of the Workplace.
J.B. Lippincott. Philadelphia. 1978. p. 116-7
Hawley, G.G., Ed. The Condensed Chemical Dictionary. 10th Ed.
Van Nostrand Reinhold. New York. 1981. p. 105
International Technical Information Institute. Toxic and
Hazardous Industrial Chemicals Safety Manual for Handling
and Disposal with Toxicity and Hazard Data. International
Technical Information Institute. 1978. p. 57-8,067
Sax, N.I. Dangerous Properties of Industrial Materials. 5th Ed.
Van Nostrand Reinhold. New York. 1979. p. 396-7
Windholz, M., Ed. The Merck Index. 9th Ed. Merck and Co.
Rahway, NJ. 1976. p. 128, 967
Weast, R.C. and M.A. Astle, Eds. CRC Handbook of Chemistry
and Physics. 60th Ed. CRC Press, Inc. Boca Raton, FL.
1982. p. b-58, b1
Lewis, R.J., Sr. and R.L. Tatken, Eds. Registry of Toxic
Effects of Chemical Substances. DHEW (NIOSH) Publication
No. 79-100. National Institute for Occupational Safety
and Health. Cincinnati, OH. 1979. CQ8370000
[610] Clansky, Kenneth B., Ed. Suspect Chemicals Sourcebook: A Guide to
Industrial Chemicals Covered Under Major Federal Regulatory and
Advisory Programs. Roytech Publications, Inc. Burlingame, CA.
1990. Section 3, p. 113.
[620] United States National Toxicology Program. Chemical Status Report.
NTP Chemtrack System. Research Triangle Park, NC. October 3, 1990.
Not listed.
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