SODIUM FLUORIDE

PRODUCT IDENTIFICATION

CAS NO. 7681-49-4

SODIUM FLUORIDE 

EINECS NO. 231-667-8
FORMULA NaF
MOL WT. 41.99

H.S.CODE

2826.11
TOXICITY Oral rat LD50: 52 mg/kg
SYNONYMS Disodium Difluoride; Floridine; Florocid; Villiaumite;
Sodium Hydrofluoride; Sodium Monofluoride; Trisodium Trifluoride; Alcoa Sodium Fluoride; Cavi-trol; Chemifluor; Fluorident; Fluorigard; Credo; Duraphat; Fluorid Sodny (Czech); Fluorol; Fluorure De Sodium (French); Sodium Fluorure (French);
RAW MATERIALS  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE Odorless white powder or crystal
MELTING POINT 993 C
BOILING POINT 1700 C
SPECIFIC GRAVITY 2.78
SOLUBILITY IN WATER Soluble
pH 7.4
VAPOR DENSITY 1.45

AUTOIGNITION

 

NFPA RATINGS

Health: 3 Flammability: 0 Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT Not considered to be a fire hazard
STABILITY Stable under ordinary conditions

APPLICATIONS

Fluorine (Symbol : F; Atomic no. 9 ) is a yellowish, poisonous, corrosive gas under ordinary conditions. Fluorine becomes a yellow liquid upon cooling. It is the most reactive nonmetallic element and extremely powerful oxidizing agent. Because of its extreme reactivity, fluorine does not occur uncombined in nature. Fluorine occurs widely combined in the mineral fluorspar( fluorite, the chief commercial source), cryolite and apatite. The preparation of the free element is carried out by the electrolysis of a molten mixture of hydrogen fluoride, HF, and potassium fluoride, KF in the absence of water. Fluorine can be safely stored under pressure in cylinders of stainless steel if the valves of the cylinders are free from traces of organic matter. The outstanding oxidizing properties of the elemental gas are used in some rocket fuels. The element may be used for the fluorination of organic compounds with appropriate precautions. The element is used for manufacturing various fluorides including chlorine trifluoride ans cobalt(III) fluoride which are important fluorinating agents for organic compounds, sulfur(VI) fluoride used as a gaseous electrical insulator. Boron trifluoride and antimony trifluoride like hydrogen fluorides are important catalysts for alkylation reactions used to prepare organic compounds. Sodium fluoride (NaF) is used to treat dental caries and is often used for the fluoridation of drinking water to reduce tooth decay (However, there are reports of an accompanying risk of fluoride toxicity ). The element is also used for the preparation of uranium(VI) fluoride, utilized in the gaseous diffusion process of separating uranium-235 from uranium-238 (natural uranium) for reactor fuel. The importance of fluorine lies largely in its extreme ability to attract electrons and to the small size of its atoms, which can be attributed to form many stable complexes with positive ions like hexafluorosilicate(IV) and hexafluoroaluminate(III). Fluorine derivatives of hydrocarbons (compounds of carbon and hydrogen) are useful extensively as aerosol-spray propellants, refrigerants, solvents, cleansing agents for electrical and electronic components, and foaming agents in shipping-plastics manufacturing. Useful plastics with non-sticking qualities, such as polytetrafluoroethylene ( known by the trade name Teflon), are readily made from unsaturated fluorocarbons. A solution of hydrogen fluoride gas in water is called hydrofluoric acid, largely consumed for cleaning metals and for polishing, frosting, and etching glass. Hydrofluoric acid is also used as a catalyst for alkylation reactions. The chemical reactions are similar to those in the sulfuric acid process, but it is possible to avoid refrigeration. (In sulfuric acid alkylation, refrigeration is necessary because of the heat generated by the reaction). 

Sodium fluoride is used in laundry souring, manufacturing enamels, manufacturing coated papers, wood preservative , foam production, opal glass, ore flotation and water fluoridation.

SALES SPECIFICATION

APPEARANCE

white odorless powder or crystal
ASSAY (NaF) 98.0% min
FREE ALKALI (as Na2CO3) 0.5% max
FREE ACID (HF) 0.1% max
SILICA (SiO2)

0.5% max

SULFATES

0.3% max

WATER INSOLUBLES

0.5% max

HEAVY METALS (as Pb)

10ppm max

SIEVE ANALYSIS

98% min ( 20 mesh) , 5% max (mesh 325)

TRANSPORTATION
PACKING 25kgs in Bag
HAZARD CLASS 6.1 (Packing group: III)
UN NO.

1690

ACTIVE INGREDIENTS IN MOUTHWASH OR DENTAL CARIES PROPHYLACTIC

Ingredient

CAS RN

Amosan 8059-88-9
Benzalkonium chloride 8001-54-5
Cetylpyridinium chloride 123-03-5
Chlorhexidine gluconate 18472-51-0
Chlorhexidine55-56-1
Dectaflur 36505-83-6
Eucalyptol 470-82-6
Hetaflur 3151-59-5
Hydrogen peroxide 7722-84-1
Ipexidine mesylate 69017-90-9
Listerine 51273-66-6
Meridol 120812-75-1
Metesculetol 52814-39-8
Methyl salicylate 119-36-8
Olaflur 6818-37-7
Rhatany 84775-95-1
Salifluor 78417-90-0
Sanguinarine 2447-54-3
Sodium monofluorophosphate 10163-15-2
Sodium fluoride 7681-49-4
Stannous fluoride 7783-47-3
Thymol 89-83-8
Tiodonium chloride 38070-41-6
Zinc chloride 7646-85-7
Zinc fluoride 7783-49-5
PRICES

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