Barite-Chongqing Barium Manganese Strontium Chemical Co., Ltd

Barite

Name：Barite

Other Name：Native sulfate of barium; Barytes

HS Code：25111000

CAS：7727-43-7

Formula：BaSO₄

Formula WT: 233.39

Usage: It is widely used as weighting agent for oil and gas drilling fluids and used in producing white pigment (Charlton white—lithopone) and barium compounds (such as barium carbonate, barium chloride, barium hydroxide, etc). Besides, it is also used as raw material and filler of paint, ink, plastic, rubber, textile, glass, papermaking, etc.

Annual output: 50,000 tons

Package: 25kg, 50kg or 1000kg plastic bag inside &woven bag outside.

1. Specifications of drilling grade barite powder

Grade			Ⅰ	Ⅱ
Appearance			white or off-white powder
Barium sulfate		≥(%)	92.00	90.00
Density		≥(g/cm₃)	4.20	4.05
Water-soluble alkaline earth metals as Calcium		≤(mg/kg)	250
Residue greater than 75 um		≤(%)	3.0
Viscosity effect	Before adding calcium sulfate	≤(mPa.s)	140
	After adding calcium sulfate	≤(mPa.s)	140

2. Specifications of chemical grade and filler grade barite powder

Application		Chemical grade			Filler grade
Grade		Fine	Ⅰ	Ⅱ	Fine	Ⅰ
Appearance		White or off-white powder			White powder
BaSO₄	≥(%)	95.00	90.00	85.00	96.00	93.00
SiO₂	≤(%)	1.5	2.5	2.5	1.5	1.5
Fe₂O₃	≤(%)	0.5	1.5	1.5	0.05	0.05
Al₂O₃	≤(%)	1.0	2.0	2.0	1.0	1.0
Water soluble salt	≤(%)	0.3	1.0	1.0	--	--
Whiteness	≥(%)	--	--	--	95	92
Dimensions	≥(%)	--	--	--	325 mesh	325 mesh

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