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Date: 19-1-2018
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Date: 5-1-2018
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Date: 26-11-2018
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Barium sulfate (BaSO4), or barite, is the most common mineral abundant in barium. This mineral has a density of 4.5g/cm3 and is extremely insoluble in water. Uses of barium sulfate include being a radiocontrast agent for X-ray imaging of the digestive system. Barium carbonate (BaCO3) is also commonly used as a rat poison.
Barium compounds (which are toxic) are also useful in pyrotechnic devices where they impart a characteristic green color.
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تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
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أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
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قسم شؤون المعارف ينظم دورة عن آليات عمل الفهارس الفنية للموسوعات والكتب لملاكاته
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