氟化锡

Description

Tin(II)Fluoride · CAS 7783-47-3 · F2Sn. Boiling Point: 1052 °F at 760 mmHg (USCG, 1999); Boiling Point: 850; Boiling Point: 850 °C.

Identification

CAS Registry Number	7783-47-3
PubChem CID	24550
Molecular formula	F2Sn
IUPAC name	difluorotin

Computed Descriptors

Molecular Weight	156.71
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	157.899009
Monoisotopic Mass	157.899009
Topological Polar Surface Area	0
Heavy Atom Count	3
Formal Charge	0
Complexity	2.8

Physical & Chemical Properties

Boiling Point	1052 °F at 760 mmHg (USCG, 1999)
Boiling Point	850
Boiling Point	850 °C
Melting Point	419 °F (USCG, 1999)
Melting Point	215
Melting Point	213 °C
Solubility	30-39% in water at 20 °C
Density	4.57 @ 25 °C
Density	4.57 g/cm³
pH	2.8-3.5 (0.4% AQ SOLN)

Physical description & handling notes

• Stannous fluoride is a white crystalline solid. Sinks and mixes with water. (USCG, 1999)
• Dry Powder
• White lustrous solid; [Hawley] White odorless crystalline solid; [MSDSonline]
• WHITE CRYSTALLINE POWDER.
• Monoclinic, lamellar plates
• White, monoclinic crystalline powder

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Effective Food Contact Substance (FCS) Noti: FCS Zirconium Oxide (CAS. Reg. No. 1314-23-4) and Tin(II) Phosphate (CAS. Reg. No. 15578-32-2) and Tin(II) Fluorid As a conversion coating on the interior of tinplated steel containers (cans) with or without a polymeric topco CIR / INCI: Oral care; Antiplaque
GHS notification summary	34.6% (36 / 104)

GHS Hazard Classification

GHS notification summary	34.6% (36 / 104)
Reported hazard statements	H290 (11.5%), H301 (15.4%), H302 (49%), H314 (12.5%), H315 (52.9%), H318 (52.9%), H411 (11.5%), H300

Documented Uses

• Used in toothpastes and other dental preparations for preventing demineralization and caries of teeth; [HSDB]
• Principal commercial use is in toothpaste formulations and other dental preparations, e.g., topical solutions, mouthwash, chewing gum, etc. for preventing demineralization of teeth.
• Tin(II) fluoride is a common ingredient in toothpaste, where it converts apatite into fluorapatite, which is more resistant to attack by acids generated by bacteria. (L320)
• Cosmetics -> Oral care; Antiplaque
• Not Known or Reasonably Ascertainable
• Information on 10 consumer products that contain Stannous fluoride in the following categories is provided:

Synonyms

7783-47-3; STANNOUS FLUORIDE; Tin difluoride; Tin bifluoride; Tin Fluoride (SnF2); Easygel; Stancare; Stanide; Crest; Stop; Iradicar SnF2; Iradicav SnF2; King's Gel-Tin; Cap-Tin Mouthrinse; Stop Home Treatment; Iradicar Stannous Fluoride

Frequently Asked Questions

What are the CAS number and molecular formula of Tin(II)Fluoride?

CAS 7783-47-3; molecular formula F2Sn; molecular weight — g/mol.

What other names is Tin(II)Fluoride known by?

7783-47-3, STANNOUS FLUORIDE, Tin difluoride, Tin bifluoride, Tin Fluoride (SnF2), Easygel.

What is the regulatory status of Tin(II)Fluoride?

Documented regulatory listings: FDA Inventory of Effective Food Contact Substance (FCS) Noti: FCS; Zirconium Oxide (CAS. Reg. No. 1314-23-4) and Tin(II) Phosphate (CAS. Reg. No. 15578-32-2) and Tin(II) Fluorid; As a conversion coating on the interior of tinplated steel containers (cans) with or without a polymeric topco.

Is Tin(II)Fluoride classified as hazardous?

34.6% of GHS notifications report no hazard classification (36 of 104).

What are the key physical properties of Tin(II)Fluoride?

Boiling Point: 1052 °F at 760 mmHg (USCG, 1999); Boiling Point: 850; Boiling Point: 850 °C; Melting Point: 419 °F (USCG, 1999).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.