CAS No.7783-61-1,Tetrafluorosilane Suppliers

Products Categories

Others (13)
Pharmaceutical (12)
Organic Chemicals (5)
Reagent (1)
Materials (1)
Basic Inorganic Chemicals (1)

Basic Information

Molecular Structure:
CAS No.:	7783-61-1
Name:	Tetrafluorosilane
Article Data:	522

Formula:	F₄Si
Molecular Weight:	104.079
Synonyms:	Siliconfluoride (SiF4) (8CI);Perfluorosilane;Silicontetrafluoride;Tetrafluorosilane;
EINECS:	232-015-5
Density:	1.209 g/cm³
Melting Point:	-90°C
Boiling Point:	86 °C
Appearance:	COLOURLESS GAS , WITH PUNGENT ODOUR.
Hazard Symbols:	C; T; T+
Risk Codes:	26-35-34-31-26/27/28-14
Safety:	7/9-24/25-45-36/37/39-26-23
Transport Information:	UN 1859
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

Raw Materials

78-10-4

375-72-4

Downstream Products

71-43-2

312-40-3

427-44-1

353-49-1

Total:32 Page 1 of 1 1

Post a RFQ

Cas No.:

Product Name:

Quantity:

Email:

Company name:

Valid Period:

Detailed Requirements:

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

What can I do for you?
Get Best Price

Get Best Price for 7783-61-1

Consensus Reports

Reported in EPA TSCA Inventory.

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

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.