63705-05-5 Usage
Chemical Properties
Sulfur is a yellow crystalline solid or powder. Often transported in the molten state.
Uses
Organic sulfur compounds occur in garlic, mustard,
onions, and cabbage and are responsible for the odor of
skunks. Sulfur occurs in living tissue and is part of some
amino acids. Unlike many other inorganic elements, sulfur
itself is relatively nontoxic. Sulfur and some of its salts have
been used medicinally. Organosulfur compounds, such as
diallyl disulfide, exhibit antiproliferative effects on cancer
cells. The consumption of sulfur is a measure of
national industrial development and economic activity.
Sulfur is most often used as a chemical reagent, rather
than as part of a finished product. In the United States,about 90% of sulfur consumed was in the form of sulfuric
acid. Agricultural chemicals (primarily fertilizers) comprised
about 62% of sulfur demand; petroleum refining, 26%;
and metal mining, 5%.
Production Methods
Sulfur (S) occurs naturally as a yellow, water-insoluble solid.
The name is from the Latin “sulphur.” Early Greek physicians
mention sulfur and the fumes from burning sulfur in
religious ceremonies.Sulfur can be
extracted from crude oil in the refining process, as well as
from stack gases resulting from coal combustion. Sulfur
occurs in fossil fuels and in metal (Fe, Pb) ores. The
world resources of elemental sulfur in evaporate and volcanic deposits and sulfur associated with natural gas, petroleum, tar
sands, and metal sulfides equal about 5 billion ton. The
sulfur in gypsum and anhydrite is almost limitless; about 600
billion ton of sulfur is present in coal, oil shale, and shale rich
in organic matter. However, recovery of sulfur from these
sources poses an economic challenge due to lack of low-cost
technologies. The U.S. sulfur resource is estimated at about
one-fifth of the world total. Exposure may occur in
numerous operations related to the mining and recovery of
sulfur.
Health Hazard
Sulfur is present in every cell in the body, primarily in proteins containing the amino acids methionine, cystine, and cysteine. Inorganic sulfates and sulfides occur in small amounts relative to total body sulfur, but the compounds that contain them are important to metabolism. Sulfur intake is thought to be adequate if protein intake is adequate and sulfur deficiency has not been reported. Although sulfur is in the same group of the Periodic Table, Group 16(VIA), as oxygen, sulfur functions much more like phosphorus, Group 15(VA), in biological systems. In fat metabolism, sulfur plays a key role analogous to that of phosphorus in carbohydrate metabolism. Fatty acid synthesis and degradation begin and end with the same compound, acetyl-S coenzyme A (acetyl–SCoA).
Potential Exposure
Widely used in manufacture of sulfuric acid; carbon bisulfide; drugs, fungicides, gunpowder, wood pulp; rubber, and other products.
Shipping
UN1350 Sulfur, Hazard Class: 4.1; Labels: 4.1-Flammable solid (International). NA1350 Sulfur, Hazard class: 9; Labels: 9-Miscellaneous hazardous material (Domestic). UN2448 Sulfur, molten, Hazard Class: 4.1; Labels: 4.1-Flammable solid (International). NA 2448 Sulfur, molten Hazard class: 9; Labels: 9-Miscellaneous hazardous material (Domestic).
Incompatibilities
Widely used in manufacture of sulfuric acid; carbon bisulfide; drugs, fungicides, gunpowder, wood pulp; rubber, and other products.
Waste Disposal
Salvage for reprocessing or dump to landfill.
Check Digit Verification of cas no
The CAS Registry Mumber 63705-05-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,7,0 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 63705-05:
(7*6)+(6*3)+(5*7)+(4*0)+(3*5)+(2*0)+(1*5)=115
115 % 10 = 5
So 63705-05-5 is a valid CAS Registry Number.
