Sodium Fluorophosphate|Silicon Dioxide|Sodium fluoride|Zinc Sulphate Monohydrate|Dicalium Phosphate|Ammonium chloride|Sorbitol|Ammonium zinc chloride-Tianjin Development Zone Xinda Chemical Technical Development Co.,Ltd.

Sodium fluoride

Chemical name: Sodium fluoride

Molecular formula: NaF

Molecular weight: 41.99

Appearance: Solid: white powder or crystal crystalloid

Product standard: GB4293—84

Description: Its relative density is 2.558, m.p. 993°Cand b.p. 1704°C. It is insoluble in ethanol and has toxic. Its aqueous solution will etch glass.

Uses: It is used in welding flux, toothpaste additive, preservative, bactericide, slagging medium of metallurgy, adhesive, papermaking and construction industry.

Storage: Store in seal Hermetically.

Packing: 25Kg net, pack sealed with double plastic bags lined plastic woven sack.

Item		GB4293—84			Technical Specification
Grade		First Grade	Second Grade	Third Grade	Toothpaste Grade	High Grade	First Grade
NaF	%	98 min	95 min	84 min	98.5 min.	98.0 min.	98.0 min
SiO₂	%	0.5 max	1.0 max	—	0.5 max	0.4 max	0.5 max
Na₂CO₃	%	0.5 max	1.0 max	2.0 max	0.1 max	0.2 max	0.5 max
Sulfate (SO₄)	%	0.3 max	0.5 max	2.0 max	0.2 max	0.3 max	0.3 max
Free acid (HF)	%	0.1 max	0.1 max	0.1 max	0.1 max	0.2 max	0.2 max
Water-insoluble matter	%	0.7 max	3 max	10 max	0.1 max	0.5 max	0.7 max
H₂O	%	0.5 max	1.0 max	1.5 max	0.5 max	0.5 max	0.5 max
Heavy metal (Pb)	%	—	—	—	0.005 max	—	—
Fe	%	—	—	—	0.005 max	—	—
As	%	—	—	—	0.0005 max	—	—

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