황화바륨(BaS),검정색

Dry Powder

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

Warning

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

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

Danger

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

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)

Chemical: Barium sulfide (BaS)

Barium sulfide (BaS) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Barium sulfide (BaS) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 28-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13592

Met. Corr. 1 (82.7%)

Hazardous to the aquatic environment (acute) - category 1

Acute toxicity (Oral) - Category 4

Acute Tox. 4 *

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)

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)

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)

Barium compounds are absorbed via ingestion and inhalation, the extent of which depends on the individual compound. In the body, the majority of the barium is found in the bone, while small amounts exists in the muscle, adipose, skin, and connective tissue. Barium is not metabolized in the body, but it may be transported or incorporated into complexes or tissues. Barium is excreted in the urine and faeces. (L214)

Used to remove hair and to make luminous paints, lithopone, and vulcanized rubber; [Merck Index] Used for dehiding, flame retarding, and as a paint additive; [Hawley] Used in metallic patinas; [www.ci.tucson.az.us/arthazards/medium.html]

Painting (Pigments, Binders, and Biocides) [Category: Paint]

Applying metallic patinas [Category: Hobbies]

Barium sulfide is the precursor to barium carbonate and the pigment lithopone. (L211)

All Other Basic Inorganic Chemical Manufacturing

Barium sulfide (BaS): ACTIVE