¨ 08321 Sodium Fluoride Definition Camical name Sodium Fluoride C.A.S. number 7681-49-4 Chemical fomula NaF Formula weight 41.99 Assay Not less than 98.0 % after drying Description White crystals or powder Characteristics Water insoluble matter Not more than 0.5 % Free acid Not more than 0.25 % (As HF)

Free alkali Not more than 0.2 % (As Na2CO3) Purity Loss on drying Not more than 1 % (150ʚ, 4h) Chloride Not more then 200 ppm (As Cl)

Sulfate Not more than 300 ppm (As SO4)

Hexa-Silicofluoride Not more than 0.1 % (As SiF6) Iron Not more than 50 ppm Heavy metal Not more than 30 ppm (As Pb) Category Food additives category (8) Functional uses Nutritional additives

The Amendment of Standards for Specification, Scope, Application and Limitation of Food Additives MOWH Food No.1051301024, 29 June, 2016 Appendix 2: Standards for Specification of Food Additives ¨ 08320 Potassium Fluoride Definition Camical name Potassium Fluoride C.A.S. number 7789-23-3 Chemical fomula KF Formula weight 58.1 Assay Not less than 98.0 % after drying Description White crystals or powder

Characteristics Solubility Sparingly soluble in water Free acid Not more than 0.1 % (As HF)

Free alkali Not more than 0.15 % (As K2CO3) Purity Loss on drying Not more than 1 % (500ʚ, 1h) Chloride Not more then 500 ppm (As Cl)

Sulfate Not more than 100 ppm (As SO4)

Hexa-Silicofluoride Not more than 0.1 % (As SiF6) Sodium Not more than 0.2 % Iron Not more than 20 ppm Heavy metal Not more than 30 ppm (As Pb) Category Food additives category (8) Functional uses Nutritional additives

The Amendment of Standards for Specification, Scope, Application and Limitation of Food Additives MOHW Food No.1051301024, 29 June, 2016 Appendix 1: Standards for Scope, Application and Limitation of Food Additives

08. Nutritional additives Scope and Application Code Food Additive Items Limitations Standards 320 Potassium Fluoride Edible salt for domestic 1. Package weight use : not more than 200 not more than ppm (as fluorine ion) 1,000 g. 2. Shall not add NaF in the same product. 3. Shall meet related labeling regulation. 321 Sodium Fluoride Edible salt for domestic 1. Package weight use : not more than 200 not more than ppm (as fluorine ion) 1,000g. 2. Shall not add KF in the same product. 3. Shall meet related labeling regulation.