| Identification | More | [Name]
Sulfur tetrafluoride | [CAS]
7783-60-0 | [Synonyms]
sulfur fluoride
SULFUR TETRAFLUORIDE
SULPHUR TETRAFLUORIDE
(beta-4)-sulfurfluoride(sf4
SF4
Sulfur fluoride (SF4)
Sulfur fluoride (SF4), (T-4)-
Tetrafluorosulfurane
tetrafluoruredesoufre
sulfur tetrafluoride cyl. with 450 G (~net)
Sulphur tetrafluoride 94%
Sulphurtetrafluoride94%
Sulfur(IV) tetrafluoride
Tetrafluorosulfur(IV) | [EINECS(EC#)]
232-013-4 | [Molecular Formula]
F4S | [MDL Number]
MFCD00040327 | [Molecular Weight]
108.06 | [MOL File]
7783-60-0.mol |
| Hazard Information | Back Directory | [Chemical Properties]
A gas. Decomposes
in water. Noncombustible. | [Chemical Properties]
Sulfur tetrafluoride is a colorless gas with an odor like sulfur dioxide. Shipped as a liquefied compressed gas. | [Uses]
Selective fluorinating agent. | [General Description]
SULFUR TETRAFLUORIDE(7783-60-0) is a colorless gas with a distinct sulfur odor. SULFUR TETRAFLUORIDE(7783-60-0) is highly toxic by inhalation and a strong irritant to skin, eyes and mucous membranes. SULFUR TETRAFLUORIDE(7783-60-0) reacts vigorously with water and acids to yield toxic fluoride and sulfur oxide fumes and an acidic solution. SULFUR TETRAFLUORIDE(7783-60-0) is heavier than air. Under prolonged exposure to fire or intense heat the containers may violently rupture or rocket. SULFUR TETRAFLUORIDE(7783-60-0) is used as a fluoridizing agent and as an oil repellent. | [Hazard]
High by inhalation, strong irritant to eyes,
mucous membranes, and upper respiratory tract irritant.
Lung damage. | [Reactivity Profile]
SULFUR TETRAFLUORIDE is a highly toxic and corrosive gas. On contact with water, steam, or mineral acids SULFUR TETRAFLUORIDE decomposes and produces toxic and highly irritating fumes. When heated to decomposition SULFUR TETRAFLUORIDE emits very toxic fluoride and sulfur oxides fumes [Lewis, 3rd ed., 1993, p. 1197]. Explosively violent reactions with 2-(hydroxymethyl)furan or 2-methyl-3-butyn-2-ol even below-50° C have been recorded [Bretherick, 5th ed., 1995, p. 1432]. Ignition or explosion may occur on contact with dioxygen difluoride even below-100° C [Streng, A. G., Chem. Rev., 1963, 63, p. 615]. | [Air & Water Reactions]
Violent reaction with water. SULFUR TETRAFLUORIDE reacts vigorously with water and acids to yield toxic fluoride and sulfur oxide fumes and an acidic solution. | [Health Hazard]
This material is highly toxic by inhalation; it is a strong irritant to eyes and mucous membranes. Poisonous; may be fatal if inhaled. Contact may cause burns to skin and eyes. Contact with liquid may cause frostbite. | [Potential Exposure]
Sulfur tetrafluoride is used as a selective fluorinating agent in making water-repellent and oil
repellent materials and lubricity improvers. It is also used as a pesticide intermediate. | [Fire Hazard]
Container may explode in heat of fire. When heated to decomposition, SULFUR TETRAFLUORIDE emits very toxic fumes of fluorides and sulfur oxides. Reacts violently with water. SULFUR TETRAFLUORIDE is decomposed by concentrated sulfuric acid. Thermostable to 1112F. | [First aid]
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy. If frostbite has occurred, seek medical attention immediately; do NOT rub the affected areas or flush them with water. In order to prevent further tissue damage, do NOT attempt to remove frozen clothing from frostbitten areas. If frostbite has NOT occurred, immediately and thoroughly wash contaminated skin with soap and water. | [Shipping]
UN2418 Sulfur tetrafluoride, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 8-Corrosive material, Inhalation Hazard Zone A. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner. Forbidden to be transported by any aircraft or by rail tank car. | [Incompatibilities]
Keep away from moisture, concentrated sulfuric acid, dioxygen difluoride. Reacts vigorously with water, alcohols and acids releasing toxic fluoride, sulfur oxide fumes and forming a corrosive acid solution. Readily hydrolyzed by moisture, forming hydrofluoric acid, thionyl fluoride. Attacks glass, ceramic, concrete | [Waste Disposal]
Return refillable compressed gas cylinders to supplier. Nonrefillable cylinders should be disposed of in accordance with local, state and federal regulations. Allow remaining gas to vent slowly into atmosphere in an unconfined area or exhaust hood. Refillabletype cylinders should be returned to original supplier with any valve caps and outlet plugs secured and valve protection caps in place. | [Definition]
ChEBI: Sulfur tetrafluoride is a sulfur coordination entity. |
| Safety Data | Back Directory | [Hazard Codes ]
T+,C,T | [Risk Statements ]
R14:Reacts violently with water.
R26:Very Toxic by inhalation.
R34:Causes burns.
R37:Irritating to the respiratory system. | [Safety Statements ]
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 .
S38:In case of insufficient ventilation, wear suitable respiratory equipment .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 2418 2.3
| [WGK Germany ]
3
| [RTECS ]
WT4800000
| [Hazard Note ]
Highly Toxic/Corrosive | [HazardClass ]
2.3 | [Safety Profile]
Poison by inhalation. A powerful irritant. Will react with water, steam, or acids to yield toxic and corrosive fumes. Incompatible with dioxygen difluoride. When heated to decomposition it emits very toxic fumes of Fand SOx. See also FLUORIDES. | [Hazardous Substances Data]
7783-60-0(Hazardous Substances Data) |
| Questions And Answer | Back Directory | [Selective organic fluorinating agent ]
Sulfur tetrafluoride is a selective organic fluorinating agent, S atoms form σ bond with sp3d hybrid orbitals on its molecular structure, molecular shape is distorted tetrahedral, at normal temperature and pressure, it is colorless gas with strong stimulus foul odor of gas which similar to sulfur dioxide, it is toxic, it does not burn and explode in the air, at 600 ℃ it remains stable. It strong hydrolyzes and emits white smoke in the air. When encounteres water environment, it will cause corrosion of similar to hydrofluoric acid. It fully hydrolyzes into hydrofluoric acid and sulfur dioxide, the partial hydrolysis can produce toxic thionyl fluoride, alkali solution can fully absorb into it and turn it into non-toxic salts; it is soluble in benzene.
Sulfur tetrafluoride (abbreviation of SF4) is currently widely used and it is the most potent selective organic fluorinating agent, it can selectively fluorinate carbonyl and hydroxyl (substituted oxygen of carbonyl compounds); it is widely used in chemical high-grade and high-end liquid crystal material medicine, pesticide intermediates production industry, it has irreplaceable position.
The above information is edited by the chemicalbook of Wang Xiaodong.
| [Category]
Harmful gases.
| [Toxicity]
Mid toxicity.
| [Acute toxicity]
Inhalation-rat LCL0: 19 PPM/4h. | [Flammability hazard characteristics]
It can decompose into toxic hydrogen fluoride and sulfur dioxide gas when meets water.
| [Storage characteristics]
Treasury ventilation low-temperature drying; it should be stored separately with acids, flammable, explosive materials.
| [Extinguishing agent]
water
| [Professional standards]
TWA 2.5 mg (fluorine)/cubic meter |
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