2551-62-4 ...

2551-62-4 F6S Sulfur hexafluoride
2551-62-4 F6S Sulfur hexafluoride
2551-62-4 F6S Sulfur hexafluoride

2551-62-4 F6S Sulfur hexafluoride

Min.Order / FOB Price:Get Latest Price

100 Gram

Negotiable

  • Min.Order :100 Gram
  • Purity: 98%
  • Payment Terms : L/C,D/A,D/P,T/T,,MoneyGram,Other

Keywords

2551-62-4 F6S Sulfur hexafluoride 2551-62-4 F6S

Quick Details

  • Appearance:white powder
  • Application:Inorganics;Inorganic Fluorides;Vitamin Ingredients;Chemical Synthesis;Compressed and Liquefied Gases;Synthetic Reagents
  • PackAge:Woven bag
  • ProductionCapacity:1|Kilogram|Day
  • Storage:Normal temperature
  • Transportation:Ocean shipping Express delivery

Superiority:

Sulfur hexafluoride Basic information
Chemical Properties Molecular Structure Uses Production method Impact on the environment Chemical properties Category Toxicity grading Acute intravenous toxicity Hazardous characteristics Flammability hazard characteristics Storage characteristics Extinguishing agent Professional standards
Product Name: Sulfur hexafluoride
Synonyms: (OC-6-11)-Sulfurfluoride;(oc-6-11)-sulfurfluoride(sf6;Elegas;Esaflon;Hexafluorure de soufre;hexafluoruredesoufre;hexafluoruredesoufre(french);OC-6-11
CAS: 2551-62-4
MF: F6S
MW: 146.06
EINECS: 219-854-2
Product Categories: Inorganics;Inorganic Fluorides;Vitamin Ingredients;Chemical Synthesis;Compressed and Liquefied Gases;Synthetic Reagents
Mol File: 2551-62-4.mol
Sulfur hexafluoride Structure
 
Sulfur hexafluoride Chemical Properties
Melting point  −50 °C(lit.)
Boiling point  −64 °C1 mm Hg(lit.)
density  6.602
vapor density  5.11 (vs air)
vapor pressure  22 mm Hg ( 21.1 °C)
Water Solubility  slightly
Merck  13,9063
Stability: Stable. Non-flammable. Explodes on contact with disilane. Reacts with sodium.
CAS DataBase Reference 2551-62-4(CAS DataBase Reference)
NIST Chemistry Reference Sulfur hexafluoride(2551-62-4)
EPA Substance Registry System Sulfur fluoride (SF6), (OC-6-11)-(2551-62-4)
 
Safety Information
Hazard Codes  Xi
Risk Statements  37
Safety Statements  38
RIDADR  UN 1080 2.2
WGK Germany  -
RTECS  WS4900000
Hazard Note  Irritant
HazardClass  2.2
Hazardous Substances Data 2551-62-4(Hazardous Substances Data)
MSDS Information
Provider Language
Sulfur hexafluoride English
SigmaAldrich English
 
Sulfur hexafluoride Usage And Synthesis
Chemical Properties Chemical properties of sulfur hexafluoride are very stable. And compared to selenium hexafluoride, the hydrolysis rate of sulfur hexafluoride is extremely low, this is due to the small radius sulfur atom, which resulting in six fluorine atoms form a larger steric hindrance around. However, the fluorine atom radius is not big, so the repulsive force between the six fluorine atoms is not too large, S-F bond is not easy to dissociate. Enthalpy of formation of sulfur hexafluoride is -1220 kJ/mol, but enthalpy of formation of sulfur hexafluoride is -74 kJ / mol. Thus, the radius of fluorine atom and sulfur atom radius cause the very stable of sulfur hexafluoride molecule together --- the molecules themselves are difficult to disconnect bond and break down and the attack group is difficult to approach to the central atom, in the thermodynamics and kinetics, they are both stable. Studies have said sulfur hexafluoride can be stably present in the atmosphere for thousands of years.
Molecular Structure In VSEPR theory, sulfur hexafluoride molecular configuration is regular octahedron, which shows in Figure 1, the yellow is sulfur atom, the blue is fluorine atom. The hybrid orbital type of sulfur atom in sulfur hexafluoride is generally considered sp3d2. The angles between adjacent S-F bond are all 90 °. S-F bond length is 1.55 Å. The dipole moment is 0, and therefore they are non-polar molecules. 

Figure 1 is a sulfur hexafluoride stick model.
Uses 1,Since it is very stable in water and air and very little content in the air, sulfur hexafluoride is used for tracer by scientists to monitor the flow of seawater and the diffusion of air pollutants. 
2,Sulfur hexafluoride has good insulating properties, thus it is used as dielectrics and insulators in industry, especially in high-voltage circuits. 
3,In the medical profession, sulfur hexafluoride is used as anesthetic. Studies have confirmed the anesthesia is better than nitric oxide.
4, The ability to pass through rubber membrane of sulfur hexafluoride gas is much lower than air, so it is used as filler, used to fill tennis, insole.
5, In the magic show, due to sulfur hexafluoride gas is colorless and odorless and it is greater than the density of air, magicians use to perform floating object, it can cause the illusion which the object can float in the air. In some funny performances, performers inhale sulfur hexafluoride gas, and then speak, voice can turn deeper, which can make the audience laugh. This is because the molecular weight of sulfur hexafluoride is greater than the average molecular weight molecular of air, the acoustic frequency is significantly reduced in sulfur hexafluoride, it is almost one-half than in the air, thus tone would reduce.
The above information is edited by the chemicalbook of Wang Xiaodong.
Production method The chemical properties of elemental sulfur is very lively, sulfur hexafluoride can generate by the combustion in fluorine gas. This process will produce a small amount of S2F10, but it can be decomposed into sulfur hexafluoride and sulfur tetrafluoride by heat, then NaOH solution can be used to remove sulfur tetrafluoride, sulfur hexafluoride of high purity can be get. 
Direct synthesis method: purified fluorine (including HF≤0.5%) and sulfur can react to generate sulfur hexafluoride and a small amount of S2F10, SF4, SF2 and S2F2. After washing, alkali washing, most of the impurities gas can be removed, and then the pyrolysis furnace can explode S2F10 into SF6 and SF4 (300 ~ 350 ℃), and then remove impurities by further alkali washing , purified SF6 gas is dry by silica gel and molecular sieve drier, then sulfur hexafluoride product can be prepared. 
S + 3F2 → SF6
Impact on the environment Since the high intensity of infrared absorption, sulfur hexafluoride has been identified as a greenhouse gas, and it is the strongest greenhouse gases. 《Kyoto Protocol》indicate human must make great efforts to reduce the emissions of sulfur hexafluoride. Although sulfur hexafluoride in the atmosphere is very stable, when it once dissociate, it will generate S2F10, SF4 and HF and other fluorine-containing molecules, and these are corrosive and toxic substances, some of which are also greenhouse gases.
Chemical properties It is inert, non-combustion gas. Colorless, odorless, tasteless. It is slightly soluble in water, alcohol and ether, soluble in potassium hydroxide.
Category It is harmful gas.
Toxicity grading Low toxicity.
Acute intravenous toxicity Rabbit LD50: 5790 mg / kg
Hazardous characteristics When be heat, in the condition of insolation can cause the cylinders explode.
Flammability hazard characteristics When it contains ten trifluoride and meet water, toxic hydrogen fluoride gas can generate; and the combustion product has toxic fluoride and fumes of sulfur oxides.
Storage characteristics Treasury ventilation low-temperature drying; Handle gently.
Extinguishing agent Mist of water, sand.
Professional standards TWA 6000 mg / m³; STEL 7500 mg / m.
Chemical Properties colourless odourless gas
Definition ChEBI: A sulfur coordination entity consisting of six fluorine atoms attached to a central sulfur atom.
General Description A colorless odorless gas. Noncombustible. Shipped as a liquefied gas under own vapor pressure. Contact may cause frostbite. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.
Reactivity Profile This substance undergoes chemical reactions only under relatively severe circumstances. They are resistant to ignition, although they may become flammable at very high temperatures. They may be resistant to oxidation reduction, except in the most severe conditions. These materials may be nontoxic. They can asphyxiate. Contact of very cold liquefied gas with water may result in vigorous or violent boiling of the product and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquid gas contacts water in a closed container [Handling Chemicals Safely 1980].
Health Hazard Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating, corrosive and/or toxic gases.
Fire Hazard Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.

 

Details:

 
Sulfur hexafluoride Basic information
Chemical Properties Molecular Structure Uses Production method Impact on the environment Chemical properties Category Toxicity grading Acute intravenous toxicity Hazardous characteristics Flammability hazard characteristics Storage characteristics Extinguishing agent Professional standards
Product Name: Sulfur hexafluoride
Synonyms: (OC-6-11)-Sulfurfluoride;(oc-6-11)-sulfurfluoride(sf6;Elegas;Esaflon;Hexafluorure de soufre;hexafluoruredesoufre;hexafluoruredesoufre(french);OC-6-11
CAS: 2551-62-4
MF: F6S
MW: 146.06
EINECS: 219-854-2
Product Categories: Inorganics;Inorganic Fluorides;Vitamin Ingredients;Chemical Synthesis;Compressed and Liquefied Gases;Synthetic Reagents
Mol File: 2551-62-4.mol
Sulfur hexafluoride Structure
 
Sulfur hexafluoride Chemical Properties
Melting point  −50 °C(lit.)
Boiling point  −64 °C1 mm Hg(lit.)
density  6.602
vapor density  5.11 (vs air)
vapor pressure  22 mm Hg ( 21.1 °C)
Water Solubility  slightly
Merck  13,9063
Stability: Stable. Non-flammable. Explodes on contact with disilane. Reacts with sodium.
CAS DataBase Reference 2551-62-4(CAS DataBase Reference)
NIST Chemistry Reference Sulfur hexafluoride(2551-62-4)
EPA Substance Registry System Sulfur fluoride (SF6), (OC-6-11)-(2551-62-4)
 
Safety Information
Hazard Codes  Xi
Risk Statements  37
Safety Statements  38
RIDADR  UN 1080 2.2
WGK Germany  -
RTECS  WS4900000
Hazard Note  Irritant
HazardClass  2.2
Hazardous Substances Data 2551-62-4(Hazardous Substances Data)
MSDS Information
Provider Language
Sulfur hexafluoride English
SigmaAldrich English
 
Sulfur hexafluoride Usage And Synthesis
Chemical Properties Chemical properties of sulfur hexafluoride are very stable. And compared to selenium hexafluoride, the hydrolysis rate of sulfur hexafluoride is extremely low, this is due to the small radius sulfur atom, which resulting in six fluorine atoms form a larger steric hindrance around. However, the fluorine atom radius is not big, so the repulsive force between the six fluorine atoms is not too large, S-F bond is not easy to dissociate. Enthalpy of formation of sulfur hexafluoride is -1220 kJ/mol, but enthalpy of formation of sulfur hexafluoride is -74 kJ / mol. Thus, the radius of fluorine atom and sulfur atom radius cause the very stable of sulfur hexafluoride molecule together --- the molecules themselves are difficult to disconnect bond and break down and the attack group is difficult to approach to the central atom, in the thermodynamics and kinetics, they are both stable. Studies have said sulfur hexafluoride can be stably present in the atmosphere for thousands of years.
Molecular Structure In VSEPR theory, sulfur hexafluoride molecular configuration is regular octahedron, which shows in Figure 1, the yellow is sulfur atom, the blue is fluorine atom. The hybrid orbital type of sulfur atom in sulfur hexafluoride is generally considered sp3d2. The angles between adjacent S-F bond are all 90 °. S-F bond length is 1.55 Å. The dipole moment is 0, and therefore they are non-polar molecules. 

Figure 1 is a sulfur hexafluoride stick model.
Uses 1,Since it is very stable in water and air and very little content in the air, sulfur hexafluoride is used for tracer by scientists to monitor the flow of seawater and the diffusion of air pollutants. 
2,Sulfur hexafluoride has good insulating properties, thus it is used as dielectrics and insulators in industry, especially in high-voltage circuits. 
3,In the medical profession, sulfur hexafluoride is used as anesthetic. Studies have confirmed the anesthesia is better than nitric oxide.
4, The ability to pass through rubber membrane of sulfur hexafluoride gas is much lower than air, so it is used as filler, used to fill tennis, insole.
5, In the magic show, due to sulfur hexafluoride gas is colorless and odorless and it is greater than the density of air, magicians use to perform floating object, it can cause the illusion which the object can float in the air. In some funny performances, performers inhale sulfur hexafluoride gas, and then speak, voice can turn deeper, which can make the audience laugh. This is because the molecular weight of sulfur hexafluoride is greater than the average molecular weight molecular of air, the acoustic frequency is significantly reduced in sulfur hexafluoride, it is almost one-half than in the air, thus tone would reduce.
The above information is edited by the chemicalbook of Wang Xiaodong.
Production method The chemical properties of elemental sulfur is very lively, sulfur hexafluoride can generate by the combustion in fluorine gas. This process will produce a small amount of S2F10, but it can be decomposed into sulfur hexafluoride and sulfur tetrafluoride by heat, then NaOH solution can be used to remove sulfur tetrafluoride, sulfur hexafluoride of high purity can be get. 
Direct synthesis method: purified fluorine (including HF≤0.5%) and sulfur can react to generate sulfur hexafluoride and a small amount of S2F10, SF4, SF2 and S2F2. After washing, alkali washing, most of the impurities gas can be removed, and then the pyrolysis furnace can explode S2F10 into SF6 and SF4 (300 ~ 350 ℃), and then remove impurities by further alkali washing , purified SF6 gas is dry by silica gel and molecular sieve drier, then sulfur hexafluoride product can be prepared. 
S + 3F2 → SF6
Impact on the environment Since the high intensity of infrared absorption, sulfur hexafluoride has been identified as a greenhouse gas, and it is the strongest greenhouse gases. 《Kyoto Protocol》indicate human must make great efforts to reduce the emissions of sulfur hexafluoride. Although sulfur hexafluoride in the atmosphere is very stable, when it once dissociate, it will generate S2F10, SF4 and HF and other fluorine-containing molecules, and these are corrosive and toxic substances, some of which are also greenhouse gases.
Chemical properties It is inert, non-combustion gas. Colorless, odorless, tasteless. It is slightly soluble in water, alcohol and ether, soluble in potassium hydroxide.
Category It is harmful gas.
Toxicity grading Low toxicity.
Acute intravenous toxicity Rabbit LD50: 5790 mg / kg
Hazardous characteristics When be heat, in the condition of insolation can cause the cylinders explode.
Flammability hazard characteristics When it contains ten trifluoride and meet water, toxic hydrogen fluoride gas can generate; and the combustion product has toxic fluoride and fumes of sulfur oxides.
Storage characteristics Treasury ventilation low-temperature drying; Handle gently.
Extinguishing agent Mist of water, sand.
Professional standards TWA 6000 mg / m³; STEL 7500 mg / m.
Chemical Properties colourless odourless gas
Definition ChEBI: A sulfur coordination entity consisting of six fluorine atoms attached to a central sulfur atom.
General Description A colorless odorless gas. Noncombustible. Shipped as a liquefied gas under own vapor pressure. Contact may cause frostbite. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.
Reactivity Profile This substance undergoes chemical reactions only under relatively severe circumstances. They are resistant to ignition, although they may become flammable at very high temperatures. They may be resistant to oxidation reduction, except in the most severe conditions. These materials may be nontoxic. They can asphyxiate. Contact of very cold liquefied gas with water may result in vigorous or violent boiling of the product and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquid gas contacts water in a closed container [Handling Chemicals Safely 1980].
Health Hazard Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating, corrosive and/or toxic gases.
Fire Hazard Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.

 
 HenNan sunlake enterprise corporation is located in Henan Province , The central plain of China , Which enjoys favorable geogeaphical position and convenient transportion, The com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material . 
   Sunlake is a professional manufacturer engaged in producing and selling chemicals,including Organic & inorganic chemicals , pigments & Dyestuffs , Water treatment chemicals , Food & FEED additives and others . these products have been being well exported to europe , southeast Asia , the Middle East , Africa , South America and some other countries and areas. 
    We sincerely welcome foreign friends to visit our plant for cooperation. With the idea of "quality first,credit priority, Excellent service", We are highly acknowledged by customers for good quality and competitive price. More importantly , the company has a strong R & D team, who are professional engineers and scholars with Ph. D. .So we are confident to serve you better with our high - quality products and professional team. 
We are taking great efforts to provide our customers with demanded goods and professional services, and continuously improve our core ability of competition and get the momentum for sustainable development, and finally make us being a reliable and professional wupplier in international market. 
We welcome any serious inquiries from all customers of the world, and sincerely hope to cooperate with you for a brilliant future!
 

View All
Visit Store

You Might Also Like

Related Searches

Contact Supplier

Confirm to collect the product to my collection?

OKCancel

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View