Sulfur , Analysis standard , 7704-34-9
Synonym(s):
Sulfur
CAS NO.：7704-34-9
Empirical Formula: S8
Molecular Weight: 256.52
MDL number: MFCD00085316
EINECS: 231-722-6
PRODUCT Properties
| Melting point: | 114 °C |
| Boiling point: | 445 °C |
| Density | 2.36 |
| vapor density | 8.9 (vs air) |
| vapor pressure | 1 mm Hg ( 183.8 °C) |
| Flash point: | 168 °C |
| solubility | carbon disulfide: in accordance1g/5mL |
| form | powder |
| Specific Gravity | 2.07 |
| color | Yellow |
| Odor | at 100.00?%. sulfurous |
| Resistivity | 2E23 μΩ-cm, 20°C |
| Water Solubility | Insoluble |
| Merck | 13,9059 / 13,9067 |
| Dielectric constant | 3.5（231℃） |
| InChIKey | RWSOTUBLDIXVET-UHFFFAOYSA-N |
| CAS DataBase Reference | 7704-34-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Sulfur atom(7704-34-9) |
| EPA Substance Registry System | Sulfur (7704-34-9) |
Description and Uses
Sulfur belongs to a nonmetallic chemical element (pure product: yellow crystalline solid) under the symbol S. It can actively react with many other elements. It exists in various kinds of forms and compound such as sulfide and sulfate minerals which can be found everywhere around the universe and earth. It is also a key element for all life as the major component of amino acids, vitamins and many other cofactors. Sulfur has applications in various kinds of fields. For example, one of its biggest applications is for the production of sulfuric acid for sulfate and phosphate fertilizers. It is also used for the manufacturing of insecticides, fungicides, and bactericides. In pharmaceutical, it can be used for the manufacturing of many kinds of sulfur-containing antibiotics.
Elemental sulfur is used for vulcanizing rubber; making black gunpowder; as a soil conditioner; as a fungicide; preparing a number of metal sulfides; and producing carbon disulfide. It also is used in matches; bleaching wood pulp, straw, silk, and wool; and in synthesis of many dyes. Pharmaceutical grade precipitated and sublimed sulfurs are used as scabicides and as antiseptics in lotions and ointments.
Important sulfur compounds include sulfuric acid, sulfur dioxide, hydrogen 890 SULFUR sulfide, sulfur trioxide, and a number of metal sulfides and metal oxo- salts such as sulfates, bisulfates, and sulfites. Numerous organic compounds contain sulfur, such as mercaptans, thiophenes, thiophenols, sulfate esters, sulfones, and carbon disulfide.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315 |
| Precautionary statements | P264-P280-P302+P352-P332+P313-P362+P364 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-38 |
| Safety Statements | 16-26-46 |
| RIDADR | UN 1350 4.1/PG 3 |
| WGK Germany | 1 |
| RTECS | WS4250000 |
| Autoignition Temperature | 450 °F &_& 450 °F |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | III |
| HS Code | 28020000 |
| Hazardous Substances Data | 7704-34-9(Hazardous Substances Data) |
| Toxicity | LDLo intravenous in dog: 10mg/kg |