Sodium Fluoride
Name: Sodium Fluoride
Chemical Formula: NaF
Properties: The anhydrous white crystal or powder. Molecular formula NaF, Molecular weight 42, Specific gravity 2.6.
Use: Water treatment agent, wood preservation, ceramic pigment, light metal electrolysis agent .Pesticide, disinfectant. UF3 absorbent, fluoride raw material, enamel pharmaceutical.
Packing: 25KG in pvc woven bag lined with plastic.
Product Standard: GB/T 1264-1997
|
Item
|
Unit
|
AR
|
CP
|
|
sodium fluoride content
|
%
|
≥98.0
|
98.0
|
|
clear degree test
|
%
|
qualified
|
qualified
|
|
insolubility (in water)
|
%
|
≤0.05
|
≤0.1
|
|
acidity H mmol/100g
|
%
|
≤5
|
≤10
|
|
alkalinity OH mmol/100g
|
%
|
≤2
|
≤4
|
|
chloride Cl
|
% |
≤0.005
|
≤0.01
|
|
sulfate SO4
|
%
|
≤0.03
|
≤0.05
|
|
fluosilicate SiF6
|
%
|
≤0.6
|
≤1.2
|
|
Fe
|
%
|
≤0.005
|
≤0.005
|
|
heavy metal Pb
|
%
|
≤0.003
|
≤0.005
|
Tooth grade Sodium fluoride Specification according to USP standard
|
Item
|
Unit
|
Mathod
|
Range
|
|
sodium fluoride content
|
%
|
USP
|
98.0-102.0%
|
|
odor
|
---
|
enterprise standard
|
enterprise standard
|
|
determine the nature-F-
|
---
|
USP
|
must qualified
|
|
determine the nature-Na+
|
---
|
USP
|
must qualified
|
|
impurity
|
---
|
enterprise standard
|
must qualified
|
|
heavey metal
|
%
|
USP
|
<0.003
|
|
arsenic content
|
---
|
enterprise standard
|
<2mg/kg
|
|
water(method of loss of weight)
|
%
|
USP
|
<0.5
|
|
acidity or alkalinity
|
---
|
USP
|
must qualified
|
|
fluosilicate
|
---
|
USP
|
<1.5ml
|
|
Fe
|
---
|
enterprise standard
|
<75mg/kg
|
|
chloride
|
---
|
USP
|
<120mg/kg
|
|
