Silica for Dental( Dental Abrasive and Dental Thickener)

item

unit

index

Type

Dental Abrasive

Dental Thickener

DBP Oil Absorption Value

 cm3/ 100g

85-110

175-200

Drying loss 

%

4.0-7.0

4.0-7.0

Loss on ignition(dry basis)

%

7 max

7max

2.4-3.0

Silica(dry basis)

%

90 min

90 min

PH value(5%aqueous solution)

-

7.2-8.2

7.2-8.2

Average Partical Size

μm

5-14

5-14

sieve residue

μm

1.5 max

1.5 max

Cl

mg/kg

0.1

0.1

Na2O

mg/kg

1

1

Na2SO4

mg/kg

1.5

1.5

Fe2O3

ppm

300

300

Al2O3

ppm

2000

2000

Free Crystalline Silica

ppm

1.0

1.0

Microbial Content

ppm

1000

1000

Pb

ppm

10

10

As

ppm

3

3

Hg

ppm

3

3

1.       We may produce as per buyer's request,super fine powder or micro pearl

2.       packing: 25kg bag,or as per request.