Tin(II) chloride

Description

Stannous chloride · CAS 7772-99-8 · Cl2Sn. UNII R30H55TN67. Boiling Point: 1206 °F at 760 mmHg (NTP, 1992); Boiling Point: 623 °C; Boiling Point: 623 °C @760 [mm Hg].

Identification

CAS Registry Number	7772-99-8
PubChem CID	24479
Molecular formula	Cl2Sn
IUPAC name	dichlorotin
UNII (FDA)	R30H55TN67

Computed Descriptors

Molecular Weight	189.61
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	189.839908
Monoisotopic Mass	189.839908
Topological Polar Surface Area	0
Heavy Atom Count	3
Formal Charge	0
Complexity	2.8

Physical & Chemical Properties

Boiling Point	1206 °F at 760 mmHg (NTP, 1992)
Boiling Point	623 °C
Boiling Point	623 °C @760 [mm Hg]
Melting Point	475 °F (NTP, 1992)
Melting Point	38
Melting Point	246 °C
Melting Point	246.8 °C
Solubility	42.7 g/100 g acetone @ 23 °C
Solubility	54.4 g/100 g ethyl alcohol @ 23 °C
Density	3.90 g/cu cm

Physical description & handling notes

• Stannous chloride, solid appears as crystalline mass or flaky solid with a fatty appearance. Density 3.95 g / cm3. Melting point 247 °C. Burns, but may be difficult to ignite. Toxic by ingestion. Irritates skin and eyes. Used in the manufacture of dyes, pharmaceuticals and as a tanning agent.
• Dry Powder; Liquid; Liquid; Other Solid; Dry Powder; Large Crystals
• Colourless or white crystals; May have a slight odour of hydrochloric acid
• White solid; Absorbs oxygen from air and converts to insoluble oxychloride; [Hawley] Colorless or white solid; [ICSC]
• COLOURLESS OR WHITE CRYSTALS.
• White, ortho rhombic crystals

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: ANTIOXIDANT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTIOXIDANT; COLOUR_RETENTION_AGENT: Food Additives TRS 901-JECFA 55/69 FAS 24-JECFA 33/329 (1988)
GHS notification summary	0.5% (4 / 774)

GHS Hazard Classification

GHS notification summary	0.5% (4 / 774)
Reported hazard statements	H290 (36.2%), H302, H332 (24.5%), H312 (16.3%), H314 (94.4%), H317 (37.9%), H318 (47.7%), H319 (30.9%)

Documented Uses

• Metal Thermal Spraying [Category: Plate]
• Soldering [Category: Heat or Machine]
• Leather Tanning and Processing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Textile arts [Category: Hobbies]
• Powerful reducing agent, particularly in manufacture of dyes; in tanning by galvanic methods; in liquor finishing of wire; in sensitizing of glass before metallizing; as soldering flux; as mordant in dyeing with cochineal; in manufacture of color pigments, pharmaceuticals, sensitized paper, lubricating oil additives; as tanning agent; in removing ink stains; in yeast revivers; reagent in analytical chemistry; as catalyst in organic reactions

Synonyms

Stannous chloride; 7772-99-8; Dichlorotin; Stannous dichloride; Tin (II) chloride; Stannous chloride anhydrous; Anhydrous stannous chloride; Tin chloride (SnCl2); Uniston CR-HT 200; Stannous chloride, anhydrous; Tin(II) chloride (1:2); NCI-C02722; CI 77864; C.I. 77864; R30H55TN67; RefChem:6258

Frequently Asked Questions

What are the CAS number and molecular formula of Stannous chloride?

CAS 7772-99-8; molecular formula Cl2Sn; molecular weight — g/mol.

What other names is Stannous chloride known by?

Stannous chloride, 7772-99-8, Dichlorotin, Stannous dichloride, Tin (II) chloride, Stannous chloride anhydrous.

What is the regulatory status of Stannous chloride?

Documented regulatory listings: FDA Substance added to food: ANTIOXIDANT; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; ANTIOXIDANT; COLOUR_RETENTION_AGENT: Food Additives.

Is Stannous chloride classified as hazardous?

0.5% of GHS notifications report no hazard classification (4 of 774).

What are the key physical properties of Stannous chloride?

Boiling Point: 1206 °F at 760 mmHg (NTP, 1992); Boiling Point: 623 °C; Boiling Point: 623 °C @760 [mm Hg]; Melting Point: 475 °F (NTP, 1992).

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.