Barium sulfate (BaSO4 ) Use: rubber reinforcing filler, acid can be used for rubber products and general products. Also can be used as surface coating agents, sizing agents, increasing agent, is also used in paints, ceramics, batteries, ceramic, paint, coatings, and so on. Performance: Micro-yellow powder, the relative density of 4.0-4.6, do not dissolve in water, acid and alkali and other solvents, heat acid and alkali, non-toxic and can be used for contact with food products.

Testing Items	High light barium sulfate	Extinction barium YF-350	Superfine barium YF-1250	Superfine barium YF-6000	Modified Barium YF-10000
Specifc Surface Area	23500士500	9500士500	8500士500	12000士500	18000士500
Average Parcicle Size	0.8士0.3	2.8士0.3	3.1士0.3	2.0士0.3	1.15士0.3
True Specific Gravity	4.3	4.3	4.3	4.3	4.3
Bulk Density Tapped	1.6	2.1	2.2	2.0	1.8
Moisture	0.15max	0.20max	0.15max	0.15max	0.20max
Residue ON 325 Mesh	0	0.012	0	0	0
PH	8.0-9.5	8.0-9.5	8.0-9.5	8.0-9.5	8.0-9.5
Sediment Volume	100-13	100-11	100-11	100-12	100-12
	100-13	100-11	100-10.5	100-11	100-11
Whiteness	97士0.5	95.5士0.5	93.5士0.5	95士0.5	98士0.5
Net Weight	25	25	25	25	25