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High Purity Sodium Fluoride

Formula: NaF

CAS NO.: 231-667-8

Division Of Class: 6.1, toxic

Physical and chemical properties: Sodium fluoride is a kind of shiny  or white powder, and the relative density is 2.25, melting point 993℃,  boiling point 1695℃. It solves in the water, hydrofluoric acid, slightly  insoluble in alcohol. Its aqueous solution shows a low alkalinity.  It  can soluble in HF, generating sodium hydrogen fluoride, which can  corrode the glass.

Application range: Sodium fluoride can be used as phosphatizing  accelerator in coating industry. AL3+ can play a very big role of  negative catalysis in sealing of AL and its alloy phosphating, which can  contribute to the phosphatization. Besides, it can also be used as wood  preservative, agricultural insecticide, brewing fungicide, medical  preservatives, welding flux, and enamel, paper industry, and fluoride  toothpaste additive as well.

Spec.:

Test Item/Standard

GB/T 1264-1997

USP24

DFD STANDARD

GR

AR

CP

Main Content/%≥

99

98

98

98-102

99

Water Insoluble/%≤

0.01

0.05

0.1

0.01

(H+),mmol/100g≤

2.5

5.0

10.0

0.20%

2.5

(OH-),mmol/100g

1.0

2.0

4.0

0.27%

1.0

(SiF6)/%

0.1

0.6

1.2

0.5

0.1

(SO4)/%

0.01

0.03

0.05

0.3

0.01

Loss on drying/%≤

0.3

1

(Pb)/%≤

0.001

0.003

0.005

0.003

0.001

Fe/%

0.002

0.005

0.005

0.001

(Cl)/%≤

0.002

0.005

0.01

0.012

0.001

Clarity

PASS

PASS

PASS

PASS

Storage and package:It can be packaged into polyethylene bags with  inner plastic bag with a net weight of 25KG, or according to the  customerundefineds requirements.


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