Name: Tin powder
SKU: 7440-31-5

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Basic Information

Molecular Structure:
CAS No.:	7440-31-5
Name:	Tin powder

Formula:	Sn
Molecular Weight:	122.742
Synonyms:	Stannum;Tin
EINECS:	231-141-8
Density:	7.3 g/cm³
Melting Point:	231.9 °C(lit.)
Boiling Point:	2270 °C(lit.)
Flash Point:	2270°C
Solubility:	soluble in water
Appearance:	silver-white to grey powder or lump
Hazard Symbols:	Xi,F
Risk Codes:	36/37/38-36/37-11-36/38
Safety:	26-24/25-22-36/37/39-33-16-36/37
Transport Information:	UN 3264 8/PG 2
PSA:	0.00000
LogP:	-0.91620

Synthetic route

: 2C6H18NSi2(1-)*C12H22N2Si2(2-)*2Sn(2+)

: tin(ll) chloride

A: 7440-31-5
tin

B: 157201-33-7
{((CH3)3Si)2NSnCl2NSi(CH3)3}2C6H4

Conditions

Conditions	Yield
In diethyl ether; benzene-d6 7 d at 20°C;	A n/a B 100%

...Expand

: tin(IV) oxide

: 7440-31-5
tin

Conditions

Conditions	Yield
With aluminium In neat (no solvent) byproducts: Al2O3; reaction of SnO2 and Al to Sn and Al2O3 after passing in over a blower flame;;	96%
With Al In neat (no solvent) byproducts: Al2O3; reaction of SnO2 and Al to Sn and Al2O3 after passing in over a blower flame;;	96%
With carbon monoxide In neat (no solvent) intermediate formation of solid SnO at reduction with CO at 600-850°C;;

: calcium metastannate

: 7440-31-5
tin

Conditions

Conditions	Yield
With iron In not given pptn.; no Sb, no As, 0.16% Fe, 0.053% Al;	95%
With Fe In not given pptn.; no Sb, no As, 0.16% Fe, 0.053% Al;	95%
With hydrogenchloride; aluminium In hydrogenchloride leaching (HCl soln.) at ambient temp.; pptn. (Al plates); washing; melting; content: 0.89% Sb, 0.036% As, 0.022% Fe, 0.024% Al;	94.5%
With HCl; Al In hydrogenchloride leaching (HCl soln.) at ambient temp.; pptn. (Al plates); washing; melting; content: 0.89% Sb, 0.036% As, 0.022% Fe, 0.024% Al;	94.5%

: stannous fluoride

: 7440-31-5
tin

Conditions

Conditions	Yield
With chromium In melt byproducts: CrF2;	95%
In hydrogen fluoride Electrolysis; Pt cathode, Sn anode; 29-30°C, 1 A/dm**2 with different additives;
With lithium fluoride In neat (no solvent) byproducts: Li3VF6; formation of Sn and Li3VF6 in a mixture with LiF with metallic V;;

: sodium stannate(II)

: tin(II) oxide

: 7440-31-5
tin

Conditions

Conditions	Yield
at 40℃; for 16h; Temperature;	95%

: vanadocene

: 5847-54-1
dibutyltin dibenzoate

A: 7440-31-5
tin

B: 2C5H5(1-)*2V(3+)*4OCOC6H5(1-) = [(C5H5)V(OCOC6H5)2]2

C: 4342-36-3
(Benzoyloxy)tributylstannan

D: 1191-48-6
dibutyltin

E: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
In toluene molar ratio Cp2V/Sn-compound 1/2, sealed ampoule, 20°C, 24 h;	A n/a B 94% C n/a D n/a E 84%

...Expand

: 496-74-2
3,4-dimercaptotoluene

: 55853-40-2
tin(II) dimethylamide

A: 7440-31-5
tin

: [Me2NH2]2[Sn(toluene-3,4-dithiolato)3]

Conditions

Conditions	Yield
In tetrahydrofuran a soln. of Sn compd. added to a soln. of ligand at room temp.; filtered, crystd. at room temp. for 1 h; elem. anal.;	A n/a B 94%

...Expand

: 110-71-4
1,2-dimethoxyethane

: ytterbium

: 1135-99-5
diphenyltin(IV) dichloride

A: 7440-31-5
tin

B: 145447-65-0
YbCl2(tetrahydrofuran)2

C: Yb2Cl2(CH3OCH2CH2OCH3)6(2+)*2((C6H5)3Sn)3Sn(1-)={Yb2Cl2(CH3OCH2CH2OCH3)6}{((C6H5)3Sn)3Sn}2

Conditions

Conditions	Yield
In tetrahydrofuran absence of air; stirring (room temp., 12 h), evapn. (vac.), dissoln. in DME, then 10 h (room temp.); crystn. (-10°C, 24 h); elem. anal.;	A 81.94% B 92.54% C 75.39%

...Expand

: 1124-19-2
phenyltin trichloride

: ytterbium

A: 7440-31-5
tin

: bis(triphenylstannyl)tetrakis(tetrahydrofuran)ytterbium

C: 145447-65-0
YbCl2(tetrahydrofuran)2

Conditions

Conditions	Yield
With THF In tetrahydrofuran absence of air; stirring (room temp., 30 h); filtration off of YbCl2(THF)2 and Sn, evapn. (vac.), washing (hexane), recrystn. (THF);	A 52.75% B 65.59% C 89.53%

...Expand

: 68757-81-3
bis(pentamethylcyclopentadienyl)Sn

: 7440-31-5
tin

Conditions

Conditions	Yield
With potassium In tetrahydrofuran byproducts: pentamethylcyclopentadiene; a stoich. amt. of cut-up K was added under Ar to a soln. of stannocene in THF, mixt. was stirred at room temp. for 45 min; no initial stannocene was observed after the reaction; solvent was evapd., residue was extd. with petroleum ether, ext. was analyzed for remaining stannocene by (1)H NMR, insoluble material was treated with MeOH, elemental Sn was filtered and dried, soln. was examined for C5Me5H spectroscopically;	89%
With sodium In tetrahydrofuran byproducts: pentamethylcyclopentadiene; a stoich. amt. of cut-up Na was added under Ar to a soln. of stannocene in THF, mixt. was stirred at room temp. for 25 h; no initial stannocene was observed after the reaction; solvent was evapd., residue was extd. with petroleum ether, ext. was analyzed for remaining stannocene by (1)H NMR, insoluble material was treated with MeOH, elemental Sn was filtered and dried, soln. was examined for C5Me5H spectroscopically;	81%
With lithium In tetrahydrofuran byproducts: pentamethylcyclopentadiene; a stoich. amt. of cut-up Li was added under Ar to a soln. of stannocene in THF, mixt. was stirred at room temp. for 7 d; 63% of initial material remained unchanged; solvent was evapd., residue was extd. with petroleum ether, ext. was analyzed for remaining stannocene by (1)H NMR, insoluble material was treated with MeOH, elemental Sn was filtered and dried, soln. was examined for C5Me5H spectroscopically;	<1

Raw Materials

1333-74-0

106-93-4

107-21-1

77-58-7

66-71-7

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Consensus Reports

Reported in EPA TSCA Inventory.

Standards and Recommendations

OSHA PEL: Organic Compounds: TWA 0.1 mg(Sn)/m³ (skin); Inorganic Compounds (except oxides): TWA 2 mg/m³
ACGIH TLV: TWA metal, oxide, and inorganic compounds (except SnH₄) as Sn 2 mg/m³; organic compounds TWA 0.1 mg(Sn)/m³; STEL 0.2 mg(Sn)/m³ (skin)
DFG MAK: Inorganic 2 mg/m³, organic 0.1 mg/m³
NIOSH REL: (Organotin Compounds) TWA 0.1 mg(Sn)/m³

Analytical Methods

For occupational chemical analysis use OSHA: #ID-125G or NIOSH: Elements (ICP) 7300; METALS in Urine (ICP) 8310.

Specification

The Tin, with the cas registry number 7440-31-5, is a kind of malleable, ductile, and highly crystalline silvery-white metal. This is sensitive and soluble in concentrated hydrochloric [chlorhydric] acid, sulfuric acid, aqua regia, concentrated nitric acid while is slow-soluble in cold diluted hydrochloric acid, diluted hydrochloric acid and hot dilute sulphuric acid.

Following are the basic information of this chemical: It is stable in air but is incompatible with strong oxidizing agents. What's more, its product categories are including Inorganics; Catalysis and Inorganic Chemistry; Chemical Synthesis; TinMetal and Ceramic Science; Metal and Ceramic Science; Metals; Tin; ACS GradeChemical Synthesis; Essential Chemicals; Routine Reagents; 50: Sn; TinNanomaterials; Materials Science; Nanomaterials; Nanoparticles: Metals and Metal AlloysMetal and Ceramic Science; Nanopowders and Nanoparticle Dispersions; AA Standard SolutionsSpectroscopy; AAS.

The characteristics of this chemical are as below: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)Exact Mass: 119.902197; (4)MonoIsotopic Mass: 119.902197; (5)Topological Polar Surface Area: 0; (6)Heavy Atom Count: 1; (7)Covalently-Bonded Unit Count: 1.

The production method is as below: Firstly prepare the material of stannic chloride, and then hydrolyze to stannichydroxide after the vacuum distillation; Secondly, access the air to restore and then to get the high purified tin products. The reaction equation is below: Sn(OH)2+H2→Sn+2H2O.

As to its usage, it is widely applied in many ways. It could be used as high purity reagent in electronic industry, and as the reagent to test arsenic (As) and the phosphate, and then as the organic synthesis; Then it could also be usd in producing electrical carbon product, friction material, oil bearing and powder metallurgy material of construction; Lastly, it could be very useful in reducing agent.

When you are using this chemical, please be very cautious, and then take some measure to protect yourself. This is irritating to eyes, respiratory system and skin and then it is flammable. Therefore, you should take the following instructions. Wear suitable protective clothing, gloves and eye/face protection and avoid contacting with skin and eyes. If in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice. Besides, take precautionary measures against static discharges and do not breathe dust while using. When to keep, keep this chemical away from sources of ignition.

Additionally, you could convert the following datas into the molecular structure:
(1)SMILES:[Sn]
(2)InChI:InChI=1/Sn
(3)InChIKey:ATJFFYVFTNAWJD-UHFFFAOYAJ

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Consensus Reports

Standards and Recommendations

Analytical Methods

Specification