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Sulfur pentafluoride

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Name

Sulfur pentafluoride

EINECS
CAS No. 5714-22-7 Density g/cm3
Solubility Melting Point -55°C
Formula F10S2 Boiling Point 29°C
Molecular Weight 254.12 Flash Point °C
Transport Information Appearance
Safety Poison by intravenous route. Moderately toxic by inhalation. When heated to decomposition it emits very toxic fumes of F and SOx. See also FLUORIDES and SULFIDES. Risk Codes
Molecular Structure Molecular Structure of 5714-22-7 (Sulfur fluoride (S2F10)) Hazard Symbols TLV: ceiling 0.01 ppm.
Synonyms

Decafluorodisulfur;Disulfur decafluoride; Disulfur decafluoride (S2F10)

 

Chemistry

Molecule structure of Sulfur pentafluoride (CAS NO.5714-22-7) :

Molecular Weight: 254.114032 g/mol
Molecular Formula: F10S2 
Density: 2.08 g/cm3
Melting Point: -55 °C
Boiling Point: 29 °C
XLogP3-AA: 7.2
H-Bond Acceptor: 10
Exact Mass: 253.928173
MonoIsotopic Mass: 253.928173
Heavy Atom Count: 12
Complexity: 183 
Canonical SMILES: FS(F)(F)(F)(F)S(F)(F)(F)(F)F
InChI: InChI=1S/F10S2/c1-11(2,3,4,5)12(6,7,8,9)10
InChIKey: BPFZRKQDXVZTFD-UHFFFAOYSA-N
EINECS: 227-204-4

History

 Disulfur decafluoride (S2F10) is a gas discovered in 1934 by Denbigh and Whytlaw-Gray.

Toxicity Data With Reference

1.    

ihl-rat LC50:2 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
2.    

ihl-mus LC50:1 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
3.    

ihl-dog LC50 4 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
4.    

ivn-dog LDLo:1 mg/kg

    AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 8 (1953),436.
5.    

ihl-mky LC50:9 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
6.    

ihl-cat LC50:4500 mg/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
7.    

ihl-rbt LC50:4 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
8.    

ivn-rbt LDLo:5790 µg/kg

    AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 8 (1953),436.

Safety Profile

Poison by intravenous route. Moderately toxic by inhalation. When heated to decomposition it emits very toxic fumes of F and SOx. See also FLUORIDES and SULFIDES.
Hazard Codes: ToxicT
Risk Statements: 26/27/28-34 
R26/27/28:Very toxic by inhalation, in contact with skin and if swallowed. 
R34:Causes burns.
Safety Statements: 26-36/37/39-45 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 3287
Hazard Note: Highly Toxic
HazardClass: 6.1(a)
PackingGroup: I

Standards and Recommendations

OSHA PEL: CL 0.01 ppm
ACGIH TLV: CL 0.01 ppm
DFG MAK: 0.025 ppm (0.26 mg/m3)
NIOSH REL: (Sulfur Pentafluoride) CL 0.01 ppm

Specification

 Sulfur pentafluoride (CAS NO.5714-22-7) is also called Disulfur decafluoride ; TL 70 ; Disulphur decafluoride ; Sulfur decafluoride ; Sulfur fluoride ; Sulfur fluoride (S2F10) . Sulfur pentafluoride (CAS NO.5714-22-7) is colorless volatile liquid or gas with an odor like sulfur dioxide. Each S of the S2F10 molecule is octahedral, and surrounded by 5 fluorines. It is insoluble in water and very toxic by inhalation. Sulfur pentafluoride (CAS NO.5714-22-7) is non-combustible. Decomposes when heated above 400 °C in air to generate toxic and corrosive fumes of sulfur oxides and sulfur fluorides. Shows little chemical reactivity at room conditions. Acts as a strong oxidizing agent and as a fluorinating agent at elevated temperature as Sulfur pentafluoride (CAS NO.5714-22-7) begins to break down. Reacts rapidly with molten caustics such as NaOH or KOH. 

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