Tin(II) fluoride, commonly referred to commercially (with tin(II) in Latin) as stannous fluoride, is a chemical compound with the formula SnF2. It is a colorless solid used as an ingredient in toothpastes that are typically more expensive than those that use sodium fluoride. Stannous fluoride converts the calcium mineral apatite into fluorapatite, which makes tooth enamel more resistant to bacteria-generated acid attacks. In toothpastes containing calcium minerals, sodium fluoride becomes ineffective over time, while stannous fluoride remains effective in strengthening tooth enamel. Stannous fluoride has been shown to be more effective than sodium fluoride in reducing the incidence of dental caries and controlling gingivitis.

CAS：7783-47-3
中文别名：氟化亚锡;氟化锡(II);
英文别名：TIN Chloride,dihydrate;Tin(II) chloride,dihydrate (1:2:2);Tin chloride (SnCl2) dihydrate;tin (II) fluoride;tin difluoride;Dihydrated stannous chloride;Stannous dichloride dihydrate;tin(II) chloride dihydrate;Aqueous sodium hydroxide;tin dichloride dihydrate;Stannous chloride (USAN);stannous chloride dihydrate;Stannochlor;
分子式：F2Sn
分子量：156.698
精确质量：157.899
Psa：0.0
Logp：0.4596

UNII：3FTR44B32Q

外观与性状：白色晶体或粉末
密度：4.57
沸点：850ºC
熔点：215ºC
稳定性：Stable. Non-flammable. Avoid contact with water or oxidizing agents. Moisture-sensitive.
储存条件：Keep refrigerated. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not expose to air. Store protected from moisture. Store under an inert atmosphere.

安全说明：S26-S39
危险类别码：R22; R38; R41
危险品运输编码：UN 2923
包装等级：II
危险品标志：Xn