Toothpaste grade calcium carbonate

Type / Indicator

TY-1

TY-2

Calcium Carbonate CaCO3

98.5%

98.0- 100.5

PH (250C)

8.5-10.0

9.0-10.0

Whiteness as WR

94.0

92.0

Average particle size

 ／

follow client's requirement

Loss of drying (1050C)

0.5

0.2

Insoluble Matter in HCL

0.2

0.1

Iron as Fe

0.015

0.02

Magnesium and Alkali Salts

0.3

1.5

Fluoride

0.005

／

Sulfide

Pass the test

Not detected

reducible sulfur

0.0002

0.0005

Water absorption

／

3.8－5.0

Arsenide as As

0.0003

0.0003

Pb

0.0003

／

Heavy metal

0.001

0.001

Settlement bulk

1.7－2.1

0.9－1.2

Barium

0.03

／

Total bacterial count     cfu/g≤

300

100

E. coli                cfu/g≤

Not detected

Not detected

Pseudomonas aeruginosa cfu/g≤

／

Not detected

staphylococcus aureus    cfu/g≤

Not detected

Not detected

Total yeasts            cfu/g≤

100

100