21651-19-4 Usage
Uses
1. Used in Chemical Industry:
TIN(II) OXIDE is used as a reducing agent for the preparation of stannous salts.
2. Used in Manufacturing Industry:
TIN(II) OXIDE is used as a soft abrasive putty powder.
3. Used in Glass Industry:
TIN(II) OXIDE is used in the manufacture of copper ruby glass.
4. Used in Illumination Industry:
TIN(II) OXIDE is used for illumination with UV light.
Preparation
Tin(II) oxide is prepared by heating tin(II) hydroxide. The latter is obtained as a white precipitate by reacting Sn2+ ions with hydroxide ions:
Sn2+(aq) + 2OHˉ(aq) → Sn(OH)2 (s)
Reactivity Profile
TIN(II) OXIDE is a reducing agent. Unstable in air due to slow oxidation to tin(IV) oxide. At 300°C this oxidation proceeds incandescently. Incompatible with strong oxidizing agents. Reacts with acids and with strong bases.
Check Digit Verification of cas no
The CAS Registry Mumber 21651-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,5 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21651-19:
(7*2)+(6*1)+(5*6)+(4*5)+(3*1)+(2*1)+(1*9)=84
84 % 10 = 4
So 21651-19-4 is a valid CAS Registry Number.
InChI:InChI=1/O.Sn/rOSn/c1-2
21651-19-4Relevant articles and documents
Matrix-isolation infrared spectroscopic and density functional theory studies on reactions of laser-ablated lead and tin atoms with water molecules
Teng, Yun-Lei,Jiang, Ling,Han, Song,Xu, Qiang
, p. 2149 - 2156 (2009/08/08)
Reactions of laser-ablated lead and tin atoms with water molecules in excess argon were studied by infrared spectroscopy. Insertion products HMOH and HMO (M = Pb and Sn) formed in the present experiments and characterized using infrared spectroscopy on the basis of the results of isotopic shifts, mixed isotopic splitting patterns, stepwise annealing, changes in reagent concentration and laser energy, and a comparison with theoretical predictions. Density functional theory calculations were performed on these molecules and the corresponding transition states. Agreement between the experimental and calculated vibrational frequencies, relative absorption intensities, and isotopic shifts supports the identification of these molecules from the matrix infrared spectra. Plausible reaction mechanisms have been proposed to account for the formation of these molecules.
