5000 Sodium fluoride powder Raw Materials

CAS:7681-49-4

MF:FNa

MW:41.99

EINECS:231-667-8

Specification:995 min Sodium fluoride powder

Sample:Sodium fluoride powder

Keywords:Sodium fluoride

Appearance: white powder

Storage: Cool Dry Place

Brand: Global ASAP Nutrition Factory

Shelf Life: 2 Years

Test Method: HPLC

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Uses and synthesis of Sodium fluoride powder

Sodium fluoride powder Colorless bright crystals or white powder, specific gravity 2.25, melting point 993°C boiling point 1695°C. Soluble in water (solubility 10°C 3.66, 20°C 4.06, 30°C 4.22, 40°C 4.4, 60°C 4.68, 80°C 4.89, 100°C 5.08), hydrofluoric acid, slightly soluble in alcohol.Sodium fluoride CAS 7681-49-4 The aqueous solution is weakly alkaline, dissolved in hydrofluoric acid to form sodium hydrofluoric acid, and can corrode glass. It can corrode glass. Toxic!

Colorless cubic or tetragonal crystal. Sensitive to moisture. Solubility in water (g/100ml): 4 at 15℃, 4.3 at 25℃, 5 at 100℃, Sodium fluoride Raw Materials Insoluble in ethanol. Aqueous solution partially hydrolyzed to alkaline reaction. The pH of newly prepared saturated solution is 7.4.

Its aqueous solution can make glass hairy, but Sodium fluoride Raw Materials dry crystals or powder can be stored in glass bottles. Relative density 2.78. melting point 993℃. Boiling point 1695℃. Moderately toxic, LD50 (rat, oral) 0.18g/kg. Sodium fluoride Raw Materials has strong irritation.

Functions of Sodium fluoride powder

Dental care: Sodium fluoride is a common ingredient in toothpaste and mouthwash, used to prevent tooth decay. It protects teeth by enhancing the acid resistance of tooth enamel and inhibiting bacterial growth.

Fluoridation of drinking water: In some areas, a small amount of sodium fluoride is added to drinking water to improve the dental health of the population. However, the concentration needs to be strictly controlled, and excessive intake of fluoride may cause problems such as fluorosis.

Industrial applications:

Metallurgical industry: Used as a flux to lower the melting point of metals.

Glass and ceramic industry: Used to make special glass and ceramics.

Agriculture: Used as an insecticide and preservative.

Coating industry: Used as a phosphating accelerator to stabilize the phosphating solution, refine the phosphating, and improve the performance of the phosphating film.

Other applications: Used for wood preservation, welding flux, analytical reagents, etc.

Physicochemical Property of Sodium fluoride powder

Relative density 2.558(41/4℃), melting point 993℃, boiling point 1695℃. (Relative density 2.79, melting point 992 ℃, boiling point 1704 ℃ [3]) can be soluble in water (15 ℃, 4.0g/100g; 25 ℃, 4.3g/100g), Sodium fluoride CAS 7681-49-4 can be soluble in hydrofluoric acid, insoluble in ethanol. Aqueous solution is alkaline (pH=7.4). Toxic (injury to nervous system), LD50180mg/kg (rat, oral), 5~10g lethal. Properties: colorless or even white crystalline powder, or cubic crystal system microfine crystals, odorless.

Colorless shiny crystals or white powder, belonging to the tetragonal crystal system, with positive hexahedral or octahedral crystals. Sodium fluoride powder is slightly soluble in alcohol; soluble in water, aqueous solution is acidic, dissolved in hydrofluoric acid to become sodium hydrogen fluoride.