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CAS Registry Number (CASRN):

7704-34-9 ,

Units of original limits:

mg/m3 ,

Conc dep:

N ,


Sulfur ,


S ,

CAS Registry Number (CASRN):

7704-34-9 ,

SAX Number:

SOD500 ,

Units of original limits:

mg/m3 ,

Conc dep:

N ,

p to m:

1.31034 ,


3 ,

Vapor Pressure:

183.81 ,

specific gravity:

2.07 ,

state at 25 °C:

S ,

Molar mass (g/mol):

32.06 ,

Melting point (°C):

119 ,

Boiling point (°C):

444.6 ,


What is Sulfur?

Sulfur is an abundant and common element, but it is rarely found in a pure, uncombined form at Earth's surface. As an element, sulfur is an important constituent of sulfate and sulfide minerals. It occurs in the dissolved ions of many waters. It is an important constituent of many atmospheric, subsurface, and dissolved gases. It is also an essential element in all living things and is contained in the organic molecules of fossil fuels.

As a mineral, sulfur is a bright yellow crystalline material. It is found near volcanic vents, where it sublimates from escaping volcanic gases and precipitates from hot spring waters. It is found in small amounts as a weathering product of sulfate and sulfide minerals. The largest accumulations of mineral sulfur are found in the subsurface, associated with the evaporite minerals of salt domes. It is thought to be released from gypsum and anhydrite by bacterial action.

Today, sulfur is a byproduct of the refinement of fossil fuels into usable energy sources like gasoline. This refinement is a good thing for preventing sulfur compounds from heading skyward when the fuel is burned, causing acid rain.

They've found a way to turn waste sulfur into plastic, which in turn can be used in thermal imaging devices and lithium-sulfur batteries.

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