Barium sulfide

H302: Harmful if swallowed [Warning Acute toxicity, oral]

H332: Harmful if inhaled [Warning Acute toxicity, inhalation]

H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

P261, P264, P270, P271, P273, P301+P317, P304+P340, P317, P330, P391, and P501 (click each P-code to see the statement)

H290 (82.7%): May be corrosive to metals [Warning Corrosive to Metals]

H301 (82.7%): Toxic if swallowed [Danger Acute toxicity, oral]

H302 (17.3%): Harmful if swallowed [Warning Acute toxicity, oral]

H314 (82.7%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H332 (92.3%): Harmful if inhaled [Warning Acute toxicity, inhalation]

H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

P234, P260, P261, P264, P270, P271, P273, P280, P301+P316, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P390, P391, P405, P406, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 52 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]

P260, P264, P270, P301+P317, P308+P316, P321, P330, P405, and P501 (click each P-code to see the statement)

H301: Toxic if swallowed [Danger Acute toxicity, oral]

H312: Harmful in contact with skin [Warning Acute toxicity, dermal]

H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

P260, P264, P270, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P362+P364, P363, P391, P405, and P501 (click each P-code to see the statement)

0.5 [mg/m3], as Ba, inhalable fraction (soluble compds)[German Research Foundation (DFG)]

0.5 [mg/m3], as Ba

50.0 [mg/m3], as Ba

Intermediate Oral: 0.2 mg/kg/day (L134)

Chronic Oral: 0.2 mg/kg/day (L134)

Dry Powder

Water-soluble, gray powder; [Hawley] Smells like rotten eggs; Hydrolyzes in water; [MSDSonline]

phonon wavenumber

dielectric constant

crystal structure

enthalpy

isothermal section

Gibbs energy

phase equilibrium

positional coordinate

temperature-composition section

space group

molecular structure

enthalpy change

phase diagram

unit cell parameter

melting temperature

charge transfer coefficient

heat capacity

structural phase transition

crystallographic data

acoustic attenuation

Born effective charge

transition enthalpy

band gap energy

structural transition temperature

mode Grueneisen parameter

phase transition

rotational excitation cross section

elastic stiffness

formation entropy

elastic coefficients

bulk modulus

X-ray diffraction

chemical shift

atomic environment

transition entropy

phonon frequency

formation enthalpy

electric conductivity

Barium is a competitive potassium channel antagonist that blocks the passive efflux of intracellular potassium, resulting in a shift of potassium from extracellular to intracellular compartments. The intracellular translocation of potassium results in a decreased resting membrane potential, making the muscle fibers electrically unexcitable and causing paralysis. Some of these barium's effects may also be due to barium induced neuromuscular blockade and membrane depolarization. (L214)

No indication of carcinogenicity to humans (not listed by IARC).

The health effects of the different barium compounds depend on how well the compound dissolves in water or the stomach contents. At low doses, barium acts as a muscle stimulant, while higher doses affect the nervous system, causing cardiac irregularities, tremors, weakness, anxiety, dyspnea, paralysisand possibly death. Barium may also cause gastrointestinal disturbances, damage the kidneys and cause decreases in body weight. (L214)

Oral (L214) ; inhalation (L214)

Ingesting excess barium may cause vomiting, abdominal cramps, diarrhea, difficulties in breathing, increased or decreased blood pressure, numbness around the face, and muscle weakness. High levels may result in changes in heart rhythm or paralysis and possibly death. (L214)

Nephrotoxin - The chemical is potentially toxic to the kidneys in the occupational setting.

ACGIH Carcinogen - Not Classifiable.

LD50: 375 mg/kg (Oral, Rat) (L275)

Intravenous infusion of potassium often relieves many of the symptoms of barium toxicity. (L214)