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Barium sulfate CAS 7727-43-7

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  • 7727-43-7

  • bosschem

  • 7727-43-7

Barium sulfate Basic information
Product Name: Barium sulfate
CAS: 7727-43-7
MF: BaO4S
MW: 233.39
EINECS: 231-784-4
Mol File: 7727-43-7.mol
Barium sulfate Chemical Properties
Melting point  1580 °C
Boiling point  decomposes at 1580℃ [KIR78]
density  4.5
storage temp.  Storage temperature: no restrictions.
solubility  water: insoluble
form  powder
color  White to yellow
Specific Gravity 4.5
PH Range 7
PH 3.5-10.0 (100g/l, H2O, 20℃)suspension
Water Solubility  0.0022 g/L (50 ºC)
Merck  14,994
Solubility Product Constant (Ksp) pKsp: 9.97
Exposure limits ACGIH: TWA 5 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: TWA 10 mg/m3; TWA 5 mg/m3
Stability: Stable.
CAS DataBase Reference 7727-43-7(CAS DataBase Reference)
EPA Substance Registry System Barium sulfate (7727-43-7)
检 验 项 目 检 验 标 准 检 验 结 果
T e s t I t e m T e s t S t a n d a r d T e s t r e s u l t
性状 白色结晶性粉末 合格
(Characters) (White crystalline powder) (Conform)
含量 99.00% 99.50%
(Assay)
盐酸可溶物

(Hydrochloric acid soluble 0.15% 0.11%
substance)

灼烧失重 1.50% 1.00%
(Loss on ignition)
氯化物 0.01% 0.00%
(Chloride)
可溶性硫酸盐

(Soluble sulfate) 0.01% 0.00%
总氮量 0.01% 0.00%
(Total nitrogen)


(Iron) 0.00% 0.00%
0.00% 0.00%
(Arsenic)
可溶性钡盐 0.00% 0.00%
(Soluble barium salt)
重金属 0.00% 0.00%
(Heavy metal)

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