Witherite
　　Other name：Natural barium carbonate
　　CAS No.: 513-77-9    
　　EINECS No.: 208-167-3
　　UN No.： 61021
　　HS No.：2836600000
　　Molecular Formula: BaCO₃    
　　Molecular weight: 197.35
　　1. Appearanc: Light gray or white powder
　　2. Specifications:
　　Quality standards：Refer to GB/T1614-1999

Item	Index
Barium carbonate (BaCO3), wt%	60-65
Fineness，mesh	100；200；325

　　3. Packaging: Net wt 25kg in plastic bag lined plastic film woven bag, can also package according to customer request
　　4. Uses: Raw material of barium salt, optical glass, oiling, ceramics, radio original parts demineralization of water , etc.
　　5. Storage: Stored in cool and ventilated, avoid wet and light place.
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