BARIUM SULFATE

 

SYNONYM: BARYTES

 

FORMULA: BaSO4

 

M. W. : 233.40

 

CAS NO.: 7727-43-7

 

DESCRIPTION: COLORLESS PRISMATIC CRYSTAL SHOWN AS AMORPHOUS WHITE POWDER: HARDLY SOLUBLE IN WATER, ETHANOL AND ACID; EASILY FORMING LUMPS IN DRY AIR.

 

SPECIFICATIONS:

 

ITEM

SUPER

EXCELLENT

FIRST

BaSO4 (AS PER DRY) %MIN.

98.5

98.0

98.0

VOLATILIZATING MATTER AT 105℃ %MAX.

0.1

0.10

0.15

SOLUBLE IN WATER %MAX.

0.18

0.20

0.25

Fe %MAX.

0.002

0.003

0.004

WHITENESS %MAX.

96

95

95

OIL ABSORPTION %

18-25

17-25

17-25

PH VALUE

6.5-8

6.5-8

6.5-8

RESIDUE ON SIEVE OF 30.3mm %MAX.

0.06

0.10

0.20

S %MAX.

0.001

0.003

0.003

PARTICLE SIZE

10μm %MAX

98

97

95

5μm %MAX

97

96

95

2μm %MAX.

88

88

85

 

USES: MAINLY USED FOR PAINT, PRINTING-INK, TEXTILE, PIGMENT AND POTTERY INDUSTRIES, ALSO USED AS COATINGS ON THE SURFACE OF RUBBER, PLASTIC, PHOTO-PAPER ETC.

 

PACKING: 25KG/50KG NET EACH IN P.P WOVEN BAG LINED WITH P.E BAG.