Silicon tetrafluoride supplier

Name
Tetrafluorosilane
EINECS 232-015-5
CAS No. 7783-61-1
Article Data522
CAS DataBase
Density 1.209 g/cm³
Solubility
Melting Point -90°C
Formula F₄Si
Boiling Point 86 °C
Molecular Weight 104.079
Flash Point
Transport Information UN 1859
Appearance COLOURLESS GAS , WITH PUNGENT ODOUR.
Safety 7/9-24/25-45-36/37/39-26-23
Risk Codes 26-35-34-31-26/27/28-14
Molecular Structure
Hazard Symbols C; T; T+
Synonyms Siliconfluoride (SiF4) (8CI);Perfluorosilane;Silicontetrafluoride;Tetrafluorosilane;
PSA 0.00000
LogP 1.30000

Synthetic route

: 116-14-3
polytetrafluoroethylene

: 4168-07-4
(1,1,2,2-tetrafluoroethyl)trifluorosilane

A: 433-66-9
pentafloropropylene

B: 931-91-9
1,1,2,2,3,3-Hexafluoro-cyclopropane

C: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

D: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
at 150℃; for 18h; Further byproducts given;	A 5% B n/a C 74% D 100%
at 200℃; for 10h; Further byproducts given;	A 19% B n/a C 71% D 98%

...Expand

: 4168-07-4
(1,1,2,2-tetrafluoroethyl)trifluorosilane

A: 433-66-9
pentafloropropylene

B: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

C: 7783-61-1
silicon tetrafluoride

D: 359-11-5
1,1,2-trifluoroethylene

Conditions

Conditions	Yield
With polytetrafluoroethylene at 150℃; for 18h; Further byproducts given;	A 5% B 74% C 100% D 10%

...Expand

: 353-50-4
Carbonyl fluoride

: 112926-00-8, 7631-86-9
silica gel

A: 124-38-9
carbon dioxide

B: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) slight excess over the stoich. amt. of COF2 required; reaction mixt. heated in a stainless steel or monel cylinder at 160°C for 36 h;	A n/a B 100%

...Expand

: sodium hexafluorosilicate

: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) salt dried at 250°C in vac. or in N2 flow; thermal dissocn. at 500-620°C in vac. in stainless steel reactor; fed into metallic cylinder cooled with liq. N2; filtration, IR, atomic emission and mass spectrometry;	100%
With water In neat (no solvent) byproducts: Si2OF6, SiF3OH, SiF3H; predrying of Na2SiF6 at 250-300.C in vac. or N2 for several hours, heating at 500 to 620°C in stainless steel reactor; cooling with liquid N2;
With sulfuric acid In sulfuric acid reaction by use of concd. H2SO4;;

: 54939-02-5
(2,2-dichloro trifluoro ethyl) trifluoro silane

A: 79-35-6
1,1'-dichloro-2,2'-difluoroethene

B: 598-88-9
1,2-dichloro-1,2-difluoroethene

C: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) pyrolysis at 140°C, 3 hours;;	A 8% B 90% C 100%
In neat (no solvent) pyrolysis at 140°C, 3 hours;;	A 8% B 90% C 100%

...Expand

: 6651-55-4
diphenylfluorostibine

: 368-47-8
phenyltrifluorosilane

A: 603-36-1
triphenylantimony

B: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
reflux for 3 d;	A 100% B n/a
reflux for 3 d;	A 100% B n/a

...Expand

: 563-79-1
2,3-Dimethyl-2-butene

: 4168-07-4
(1,1,2,2-tetrafluoroethyl)trifluorosilane

A: 17216-38-5
1-fluoro-1-difluoromethyl-2,2,3,3-tetramethylcyclopropane

B: 7783-61-1
silicon tetrafluoride

C: 359-11-5
1,1,2-trifluoroethylene

Conditions

Conditions	Yield
at 150℃; for 16h;	A 86% B 99% C 6%

...Expand

: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

: 110-83-8
cyclohexene

A: 116-14-3
polytetrafluoroethylene

B: 433-66-9
pentafloropropylene

C: 201230-82-2
carbon monoxide

D: 115-25-3
Octafluorocyclobutane

E: 823-70-1
7,7-difluoronorcarane

F: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
With Pyrex tube at 200℃; for 320h; Product distribution; Mechanism; further periods of contact time, other temperatures;	A 14% B 99% C 11% D n/a E 47% F 13%

...Expand

: 116-14-3
polytetrafluoroethylene

: 4168-07-4
(1,1,2,2-tetrafluoroethyl)trifluorosilane

A: 433-66-9
pentafloropropylene

B: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

C: 7783-61-1
silicon tetrafluoride

D: 359-11-5
1,1,2-trifluoroethylene

Conditions

Conditions	Yield
at 200℃; for 10h; Further byproducts given;	A 19% B 71% C 98% D 8%

...Expand

: 75-44-5
phosgene

: sodium fluoride

A: 353-50-4
Carbonyl fluoride

B: 353-49-1
fluoroformyl chloride

C: 124-38-9
carbon dioxide

D: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In acetonitrile condensation, 20°C in a sealed Pyrex tube, staying 24 h at 20°C;	A 97% B 0% C n/a D <1

...Expand

: 18114-91-5
Caesium-trans-bis(trifluormethyl)-tetrafluorphosphat

: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
With glass; acid In not given	97%

: 513-35-9
2-methyl-but-2-ene

: 4168-07-4
(1,1,2,2-tetrafluoroethyl)trifluorosilane

A: 7783-61-1
silicon tetrafluoride

B: 359-11-5
1,1,2-trifluoroethylene

: 17287-40-0, 17287-41-1, 74755-46-7, 74755-47-8
1-fluoro-r-1-difluoromethyl-c-2,3-t-2-trimethylcyclopropane

: 17287-40-0, 17287-41-1, 74755-46-7, 74755-47-8
1-fluoro-r-1-difluoromethyl-c-2-t-2,3-trimethylcyclopropane

Conditions

Conditions	Yield
at 150℃; for 18h; Further byproducts given;	A 96% B 16% C 34% D 47%

...Expand

: 6651-55-4
diphenylfluorostibine

: 1840-40-0
trichloromethyltrifluorosilane

A: 21907-22-2
diphenylantimony trichloride

B: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
at 15°C;	A n/a B 90%
at 15°C;	A n/a B 90%

...Expand

: 681-84-5
tetramethylorthosilicate

: 124-28-7
N,N-dimethyl-n-octadecylamine

: 375-72-4
Nonafluorobutanesulfonyl fluoride

A: 7783-61-1
silicon tetrafluoride

B: 25628-14-2
N,N,N,-trimethyloctadecyl ammonium nonafluorobutanesulfonate

Conditions

Conditions	Yield
In tetrahydrofuran 50°C , 6 h;	A n/a B 84%
In tetrahydrofuran 50°C , 6 h;	A n/a B 84%

...Expand

: 7783-56-4
antimony(III) fluoride

: 4109-96-0
Dichlorosilane

A: 13824-36-7
difluorosilane

B: 13465-71-9
trifluorosilane

C: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: H2; reaction in presence of SbCl5 at room temperature;;	A 80% B n/a C 10%

...Expand

: 7783-56-4
antimony(III) fluoride

: 4109-96-0
Dichlorosilane

A: 13824-36-7
difluorosilane

B: 1333-74-0
hydrogen

C: 13465-71-9
trifluorosilane

D: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) fluorination of SiH2Cl2 with SbF3 at room temp. for a longer period of time;;	A 80% B n/a C n/a D n/a

...Expand

: 13830-68-7
disilicon hexafluoride

: 1631-73-8
trimethylstannane

A: 15195-26-3
F3SiSiH3

B: 126087-12-5
trimethyl(trifluorsilyl)stannane

C: 13465-71-9
trifluorosilane

D: 7783-61-1
silicon tetrafluoride

E: 18365-37-2
Trimethylstannylsilan

Conditions

Conditions	Yield
In neat (no solvent) N2 atmosphere, high vac. line; condensing, warming (room temp., 1.5 h); passing through traps (-78°C and -46°C);	A n/a B 77% C n/a D n/a E 5%

...Expand

: stannous fluoride

: 7440-21-3
silicon

A tin: tin

B: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In melt placing of mixt. of Si with SnF2 (molar ratio SnF2:Si=2.00) in Fluoroplast-4 ampule, closing by screwed stopper, exposition for 1.00 h at 250°C; various product ratio yields for various conditions; cooling, stirring up in water, collection, drying;	A 76.8% B n/a

...Expand

: 41066-09-5
hexafluorodisilthiane

hydrogen bromide: hydrogen bromide

A hexafluorodisiloxane: hexafluorodisiloxane

B

C: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: CF3SiBr; under dry N2, in a sealed tube, 60 h at room temp., molar ratio of silane and HBr was 1:1, an other non-volatile product was also formed; fractionated distn. at a low-temp. column, S-compds. were trapped at 143K, SiF4 at 77 K;	A n/a B 68% C 1%

...Expand

: 359-55-7
iodo-bis-trifluoromethyl-arsine

: silver fluoride

A: 359-54-6
bis(trifluoromethyl)fluoroarsine

B: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
with well dried AgF;	A 60% B n/a
with well dried AgF;	A 60% B n/a

...Expand

: potassium fluoride

: 13517-13-0
disilicon hexabromide

A: 13830-68-7
disilicon hexafluoride

B: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In 1,2-dichloro-ethane; acetonitrile Si2Cl6 dissolved in C2H4Cl2 added dropwise over 2 h to suspn. of KF in boiling MeCN, allowed to reflux for 30 min in slow stream of N2; gaseous products trapped in cooled (liq. N2) trap, anlyzed by IR;	A 60% B n/a

...Expand

: 16865-60-4
iodo-trifluoro-silane

: HgS, red

A: 41066-09-5
hexafluorodisilthiane

B: octafluorotrisildithiane

C: 14515-39-0
hexafluorodisiloxane

D: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: HgI2; CF3SiI:HgS molar ratio was 1:2, in a sealed tube, 300 K for 7 days, under dry N2; low temp. fractionated distn., less volatile fraction was purified by passing it through a 198 K trap into a trap held at 173 K, the (F3SiS)2SiF2 was identified by NMR, its purity was 98 %;;	A 54% B n/a C 1% D n/a

...Expand

: 22687-88-3
(1,2-dibromotrifluoroethyl)pentafluorosulfur(VI)

A: 640723-20-2, 2699-79-8, 12769-73-2
fluorosulfonyl fluoride

B: 5714-22-7
disulfur decafluoride

C: 354-49-4
1,2,2-tribromo-1,1,2-trifluoroethane

D: 7783-61-1
silicon tetrafluoride

E: 7783-42-8
thionyl fluoride

Conditions

Conditions	Yield
Irradiation (UV/VIS); irradiated (Hanovia S 500 lamp) in silica ampule, 20 h, further products;	A n/a B n/a C 49% D n/a E n/a

...Expand

: 16853-85-3
lithium aluminium tetrahydride

: 56144-86-6
SiF3SiHBr2

A: disilane

B: 13465-71-9
trifluorosilane

C: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
React. occurs at room temp. (N2 or Ar, 15 min).; IR spectrum of volatile material indicates resulting compounds and 5% unreacted SiF3SiHBr2.;	A 5% B 45% C 45%

...Expand

: potassium fluoride

: 13465-77-5
hexachlorodisilane

A: 7647-01-0
hydrogenchloride

B: 13830-68-7
disilicon hexafluoride

C: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
In 1,2-dichloro-ethane; acetonitrile Si2Cl6 dissolved in C2H4Cl2 added dropwise over 2 h to suspn. of KF in boiling MeCN, allowed to reflux for 30 min in slow stream of N2; gaseous products trapped in cooled (liq. N2) trap, analyzed by IR;	A n/a B 45% C n/a

...Expand

: 56144-86-6
SiF3SiHBr2

: 1191-15-7
i-Bu2AlH

A: 13465-71-9
trifluorosilane

B: 7783-61-1
silicon tetrafluoride

C: 7440-21-3
monosilane

Conditions

Conditions	Yield
In carbon dioxide; isopropyl alcohol; toluene Condensing of Si-compd. at -196°C, warming to -78°C (2-propanol/CO2), addn. of i-Bu2AlH (toluene) in portions over 30 min (N2 or Ar), warming of mixt. (room temp., 15 min).; Removal of volatile compounds under vac., IR identification.;	A 40% B 20% C 40%

...Expand

: 56144-86-6
SiF3SiHBr2

: 22722-98-1
Na(1+)*AlH2(1+)*2OCH2CH2OCH3(1-)=NaAlH2(OCH2CH2OCH3)2

A: 13465-71-9
trifluorosilane

B: 7783-61-1
silicon tetrafluoride

C: 7440-21-3
monosilane

Conditions

Conditions	Yield
In carbon dioxide; isopropyl alcohol; toluene Condensing of Si-compd. at -196°C, warming to -78°C (2-propanol/CO2), addn. of vitride (toluene) in portions over 30 min (N2 or Ar), warming of mixt. (room temp., 15 min).; Removal of volatile compounds under vac., IR identification.;	A 40% B 20% C 40%

...Expand

: 75-44-5
phosgene

: 7783-61-1
silicon tetrafluoride

: 353-49-1
fluoroformyl chloride

Conditions

Conditions	Yield
excess of SiF4, heating up to 400°C in a quartz tube;	100%

: 75-44-5
phosgene

: 7783-61-1
silicon tetrafluoride

A: 353-50-4
Carbonyl fluoride

B: 353-49-1
fluoroformyl chloride

Conditions

Conditions	Yield
In gaseous matrix molar ratio of educts 1:1, 400°C in a quartz tube;	A 0% B 100%

...Expand

: 420-60-0
trimethyltin fluoride

: 7783-61-1
silicon tetrafluoride

: 10569-17-2
tris(trimethylstannyl)phosphane

A

B [bis(2,4,6-triisopropylphenyl)SnPH]2: [bis(2,4,6-triisopropylphenyl)SnPH]2

Conditions

Conditions	Yield
In tetrahydrofuran elem. anal., MAS;	A 100% B n/a

...Expand

: sodium aluminum tetrahydride

: 7783-61-1
silicon tetrafluoride

: 7440-21-3
monosilane

Conditions

Conditions	Yield
In diethylene glycol dimethyl ether byproducts: CH4; SiF4 was bubbled through soln. of NaAlH4 in diglyme at atmospheric pressure, heated at 0-60°C in He; chromy.; elem. anal.;	99%

: 64-17-5
ethanol

: 7783-61-1
silicon tetrafluoride

: 7439-95-4
magnesium

A: magnesium fluoride

B: 78-10-4
tetraethoxy orthosilicate

Conditions

Conditions	Yield
Stage #1: ethanol; magnesium With iodine at 20℃; for 3.5h; Inert atmosphere; Reflux; Stage #2: silicon tetrafluoride for 2.5h; Inert atmosphere; Reflux; Stage #3: at 300℃; for 2h; Catalytic behavior; Reagent/catalyst; Temperature; Calcination;	A 98% B 82%

...Expand

: 67-56-1
methanol

: 7783-61-1
silicon tetrafluoride

: 7439-95-4
magnesium

A: magnesium fluoride

B: 681-84-5
tetramethylorthosilicate

Conditions

Conditions	Yield
Stage #1: methanol; magnesium With iodine at 20℃; for 1.5h; Inert atmosphere; Reflux; Stage #2: silicon tetrafluoride Inert atmosphere; Stage #3: at 300℃; for 2h; Catalytic behavior; Reagent/catalyst; Temperature; Calcination;	A 98% B 85%
Stage #1: methanol; magnesium at 20℃; for 3h; Stage #2: silicon tetrafluoride at 20℃; for 0.5h; Temperature;

...Expand

: 7783-61-1
silicon tetrafluoride

A: ammonium hexafluorosilicate

B: 681-84-5
tetramethylorthosilicate

Conditions

Conditions	Yield
With CH3OH; NH3 In methanol introduction of NH3 into CH3OH in absence of air; introduction of SiF4;; filtration; distn. of the filtrate;;	A n/a B 95%
With methanol; ammonia In methanol introduction of NH3 into CH3OH in absence of air; introduction of SiF4;; filtration; distn. of the filtrate;;	A n/a B 95%

: 7783-61-1
silicon tetrafluoride

: 78-10-4
tetraethoxy orthosilicate

Conditions

Conditions	Yield
With C2H5OH SiF4 and C2H5OH in presence of NH3;;	92%
With ethanol SiF4 and C2H5OH in presence of NH3;;	92%

: 7789-78-8
calcium hydride

: 7783-61-1
silicon tetrafluoride

: 7440-21-3
monosilane

Conditions

Conditions	Yield
With hydrogen In neat (no solvent) in flow reactor at 180°C; the diluent used was H2;	90%
In neat (no solvent) Kinetics; byproducts: CaF2; mech. activated in rotating flow-through reactor; rotation frequency 100-150 rpm, CaF2 heated at temp. of 180-190°C, SiF4+H2 (1/1 v/v) flow through; gaseous products frozen out with liq. N2; detd. by gas-chromy.;

Silicon tetrafluoride Consensus Reports

Reported in EPA TSCA Inventory.

Silicon tetrafluoride Standards and Recommendations

OSHA PEL: TWA 2.5 mg(F)/m³
ACGIH TLV: TWA 2.5 mg(F)/m³; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: (Inorganic Fluorides) TWA 2.5 mg(F)/m³
DOT Classification: 2.3; Label: Poison Gas, Corrosive

Silicon tetrafluoride Specification

The CAS registry number of Silicon tetrafluoride is 7783-61-1. The IUPAC name is tetrafluorosilane. Its EINECS registry number is 232-015-5. In addition, the molecular formula is F₄Si and the molecular weight is 104.08. This tetrahedral molecule is notable for having a remarkably narrow liquid range (its boiling point is only 4 °C above its melting point).

Physical properties about this chemical are: (1)ACD/LogP: 4.15; (2)ACD/LogD (pH 5.5): 4.15; (3)ACD/LogD (pH 7.4): 4.15; (4)ACD/BCF (pH 5.5): 837.56; (5)ACD/BCF (pH 7.4): 837.56; (6)#Freely Rotating Bonds: 0; (7)Polar Surface Area: 0 Å²; (8)Index of Refraction: 1.207; (9)Molar Refractivity: 11.42 cm³; (10)Molar Volume: 86 cm³; (11)Polarizability: 4.52 ×10^-24cm³; (12)Surface Tension: 5.1 dyne/cm; (13)Density: 1.209 g/cm³; (14)Enthalpy of Vaporization: 17.05 kJ/mol; (15)Vapour Pressure: 26400 mmHg at 25°C.

Preparation of Silicon tetrafluoride: it is a by-product of the production of phosphate fertilizers, resulting from the attack of HF(derived from fluorapatite protonolysis) on silicates. It is prepared by heating BaSiF₆(>300 °C). In addition, the required BaSiF₆ is prepared by treating aqueous hexafluorosilicic acid with barium chloride.

Uses of Silicon tetrafluoride: it can be used to get fluorine silicate and fluoride lead. And it can be used as a stiffening agent of cement and artificial marble, also used for synthetic materials of organic silicon compounds.

When you are using this chemical, please be cautious about it as the following:
This chemical can react violently with water and can cause severe burns. If it contact with acids, it will liberate toxic gas. And it is very Toxic by inhalation, in contact with skin and if swallowed. During using it, wear suitable protective clothing, gloves and eye/face protection and avoid contact with skin and eyes. In case of accident or if you feel unwell, seek medical advice immediately (show label where possible). After using it, keep container tightly closed and in a well-ventilated place.

You can still convert the following datas into molecular structure:
(1)SMILES: F[Si](F)(F)F
(2)InChI: InChI=1/F4Si/c1-5(2,3)4
(3)InChIKey: ABTOQLMXBSRXSM-UHFFFAOYAU

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
rat	LC50	inhalation	2272ppm (2272ppm)	SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA LUNGS, THORAX, OR RESPIRATION: DYSPNEA	Journal of Toxicological Sciences. Vol. 18, Pg. 394, 1993.

Product Name

Tetrafluorosilane

Synthetic route

Silicon tetrafluoride Consensus Reports

Silicon tetrafluoride Standards and Recommendations

Silicon tetrafluoride Specification

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