Name | Sodium monofluorophosphate |
Synonyms | mfp phosphorofluoridate DisodiuM ADP Hydrate SODIUM FLUOROPHOSPHATE DisodiuM 5'-ADP Hydrate phosphorofluoridic acid DISODIUM FLUOROPHOSPHATE Sodium Monoflurophosphate ADP DisodiuM Salt Hydrate Sodium monofluorophosphate disodiumphosphorofluoridate disodium phosphorofluoridate Disodium Monofluorophosphate sodiumfluorophosphate(na2po3f) 7631-97-2disodiumfluorophosphate Phosphorofluoridicacid,sodiumsalt fluorophosphoric acid, sodium salt [fluoro(sodiooxy)phosphoryl]oxysodium Adenosine-5'-(Trihydrogen Pyrophosphate) DisodiuM Salt Hydrate |
CAS | 10163-15-2 7631-97-2 |
EINECS | 233-433-0 |
InChI | InChI=1/FH2O3P.2Na/c1-5(2,3)4;;/h(H2,2,3,4);;/q;2*+1/p-2/rFNa2O3P/c1-7(4,5-2)6-3 |
Molecular Formula | FH3NaO3P |
Molar Mass | 123.98 |
Melting Point | 625 °C |
Water Solubility | Soluble in water. Insoluble in ethanol and ether. |
Solubility | H2O: slightly soluble(lit.) |
Vapor Presure | 0Pa at 20℃ |
Appearance | White solid |
Color | white |
Storage Condition | Room Temprature |
Stability | Stable. Incompatible with phosphorus oxides, strong oxidizing agents. |
MDL | MFCD00014248 |
Physical and Chemical Properties | Melting Point: 625°C |
Use | Instead of sodium fluoride in toothpaste formulations used as anti-caries agents, tooth desensitizers, but also for cleaning metal surfaces and as a flux, can also be used in the manufacture of special glass |
Hazard Symbols | Xn - Harmful |
Risk Codes | 22 - Harmful if swallowed |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
UN IDs | UN3288 |
WGK Germany | 3 |
RTECS | TE6130000 |
Hazard Class | 6.1 |
Packing Group | III |
Raw Materials | Sodium fluoride Sodium hexametaphosphate |
White Crystal or powder. Melting point 625 °c. The saturated aqueous solution contained 42% of the sodium monofluorophosphate salt at 25 °c. The pH value of 2% dilute solution is 6.5~8. The decahydrate (Na2P03F-10H2 0) can be obtained by crystallization from an aqueous solution at 0 °c. Removal of the crystallized water by heating results in hydrolysis. Anhydrous sodium monofluorophosphate can be obtained by multiple extractions with ethanol or other organic solvents.
melting continuous method: the theoretical amount of sodium fluoride and sodium hexametaphosphate are fully mixed evenly, continuously added to the graphite lined reactor, heated and melted, and the continuously flowing material is cooled (air cooled) A finished product of sodium monofluorophosphate was prepared.
used as anti-caries agent, tooth desensitizer, in toothpaste formula, generally accounted for 0.7% ~ 0. 76%, at present, foreign countries have basically replaced the sodium fluoride, and in the competition with stannous fluoride has obtained the advantage. It is also used for cleaning metal surfaces and as a flux, and is also used for the manufacture of special glass. Also used for fungicides, preservatives.
should be stored in a cool, ventilated, dry, clean, non-toxic warehouse. Packed in closed containers, not mixed with acids. During transportation, it shall be protected from rain and rain, and shall not be mixed with toxic and hazardous substances. During loading and unloading, care should be taken to prevent package breakage. In accordance with the conditions of this standard, the shelf life is one year. Packed in cardboard barrels lined with polyethylene plastic bags, 5kg or 25kg net per barrel. In case of fire, it can be suppressed by water, sand and all kinds of fire extinguishing. Toxicity and protection: LD50 of this product (oral test, rat) is 570mg/kg, accidental intake of undiluted powder will cause spasm and Coma. Inhalation or contact with the eyes, skin can cause irritation, and prolonged contact with the skin can lead to the inhalation of large amounts of this substance. In order to prevent long-term inhalation of this substance, the dust content in the atmosphere should be strictly controlled, and the urine of the staff in the presence of this dust should be regularly tested. Be sure to wear gloves, face masks, and protective glasses to prevent dust from contacting the eyes and skin. If the eyes, mouth, skin dust, immediately with a large number of water to rinse, serious immediately to consult a doctor.
introduction | sodium monofluorophosphate ("MFP" for short) is a white powdery solid with a melting point of about 626 ℃, easy to dissolve in water, strong hygroscopicity, and a solubility of 42% in water at 25 ℃. There is no rust effect, the pH value of 2% aqueous solution is 6.5~8.0, and the aqueous solution slowly hydrolyzes during boiling, which can lead to the decrease of bound fluorine and the increase of free fluorine, so the purity is reduced. |
application | sodium monofluorophosphate is widely used in toothpaste additives, concrete corrosion inhibitors, food, medical treatment, etc. |
toxicity | the LD50 (oral test, mouse) of this product is 570 mg/kg. accidental intake of undiluted powder can cause cramps and coma. Inhalation or contact with eyes and skin can cause irritation, and long-term contact with the skin can cause a large amount of inhalation of this substance. In order to prevent long-term inhalation of this substance, it is necessary to strictly control the dust content in the atmosphere, and regularly check the urine of workers in this dust environment. Be sure to wear gloves, masks and protective glasses at work to prevent dust from touching eyes and skin. If the eyes, mouth and skin are contaminated with dust, rinse with a large amount of water immediately, and consult a doctor immediately in severe cases. |
use | instead of sodium fluoride, it is used as an anti-caries agent, a tooth desensitizer, a cleaning metal surface and a flux in the toothpaste formula. it can also be used to make special glass as an anti-caries agent and a tooth desensitizer. in the toothpaste formula, it generally accounts for 0.7% ~ 0.76%. at present, foreign countries have basically replaced sodium fluoride, and gained an advantage in the competition with stannous fluoride. It is also used to clean metal surfaces and as a flux, and also used to make special glass. It is also used for fungicides and preservatives. Instead of sodium fluoride, it is used as an anti-caries agent and a tooth desensitizer in the toothpaste formula. It is also used to clean metal surfaces and as a flux. It can also be used to make special glass. Used as an experimental reagent |
production method | the melting continuous method fully and uniformly mixes the theoretical amount of sodium fluoride and sodium hexametaphosphate, continuously adds it to a graphite-lined reactor, heats and melts, and the continuously flowing out materials are cooled (air cooled) to obtain a finished product of sodium monofluorophosphate. Its 6NaF (NaPO3)6 → 6 Na2PO3?F |