204722

Zinn(II)-Chlorid

≥99.99% trace metals basis

• Synonym(e): Zinndichlorid
• Lineare Formel: SnCl₂
• CAS-Nummer: 7772-99-8
• Molekulargewicht: 189.62
• PubChem Substance ID: 57647842
• eCl@ss: 38140204
• UNSPSC Code: 12352302
• NACRES: NA.21
• EC Number: 231-868-0
• MDL number: MFCD00011241
• Assay: ≥99.99% trace metals basis
• Form: crystalline powder; flakes

Eigenschaften

• Produktname: Zinn(II)-Chlorid, ≥99.99% trace metals basis
• InChI key: AXZWODMDQAVCJE-UHFFFAOYSA-L
• InChI: 1S/2ClH.Sn/h2*1H;/q;;+2/p-2
• SMILES string: Cl[SnH2]Cl
• vapor pressure: 33 hPa (~429 °C)
• assay: ≥99.99% trace metals basis
• form: crystalline powder; flakes
• reaction suitability: reagent type: catalyst; core: tin
• pH: 2.18 (20 °C)
• bp: 652 °C (lit.)
• mp: 246 °C (lit.)
• Quality Level: 100

Beschreibung

Application

Tin(II) chloride has been used for the reduction of hydroperxoxides to the corresponding alcohols in a study.[1]

Tin(II) chloride may be used:

• To catalyze the addition of diazo sulfones, diazo phosphine oxides and diazo phosphonates to aldehydes to form β-keto sulfones, β-keto phosphine oxides and β-keto phosphonates, respectively.[2]
• Along with trityl chloride, to catalyze the aldol reaction of silyl enol ethers with acetals or aldehydes and the Michael reaction of silyl enol ethers with α,β-unsaturated ketones.[3]
• As a promoter in the allylic amination of allylic alcohols with amines in the presence of palladium catalyst.[4]

General description

Tin(II) chloride (Stannous chloride, SnCl₂) is widely employed as reducing reagent.[5] It plays significant role in diverse fields of science. Since it exhibits superior catalytic action in molten state, it is employed for the hydroliquefaction of coals. It is a promising raw material for the chemical vapour deposition (CVD) of semiconducting layers.[6] It can be prepared by reacting its dihydrate form with acetic anhydride. It exhibits reducing properties in acidic media.[5] It participates in the reduction of the following compounds:[5]

• aromatic nitro compounds
• nitriles
• cyanosilyl ethers
• organic azides

On mixing sodium cyanoborohydride with SnCl₂ in a 2:1 ratio, a reducing reagent mixture is obtained. This reagent is useful for the reduction of tertiary, allyl and benzyl halides.[5]

Sicherheitshinweise

• pictograms: GHS08,GHS05,GHS07
• signalword: Danger
• hcodes: H290,H302 + H332,H314,H317,H335,H373,H412
• pcodes: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 2 Oral - STOT SE 3
• target_organs: Cardio-vascular system, Respiratory system
• Lagerklasse: 8B - Non-combustible corrosive hazardous materials
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges