barium sulfate

Barium sulfate (or barium sulphate) is a white crystalline solid with the chemical formula BaSO4. It is poorly soluble in water and other traditional solvents but is soluble in concentrated sulfuric acid. The mineral barite is composed largely of barium sulfate and is a common ore of barium.
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Noun
1. a white insoluble radiopaque powder used as a pigment
(synonym) barium sulphate, blanc fixe
(hypernym) sulfate, sulphate

Eng: barium sulfate
Urdu: (کِیمِیا) حَل نَہ ہونے والا بے رَنگ قَلمی مُرَکَب ۔