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213292

Sigma-Aldrich

Sulfur

99.998% trace metals basis

Synonym(s):

sulfur powder

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About This Item

Empirical Formula (Hill Notation):
S
CAS Number:
Molecular Weight:
32.07
EC Number:
MDL number:
UNSPSC Code:
12141912
PubChem Substance ID:
NACRES:
NA.23

vapor density

8.9 (vs air)

vapor pressure

1 mmHg ( 183.8 °C)
10 mmHg ( 246 °C)

Assay

99.998% trace metals basis

form

powder or flakes

autoignition temp.

450 °F

resistivity

2E23 μΩ-cm, 20°C

bp

444.7 °C (lit.)

mp

112.8 °C (rhombic) (lit.)
117-120 °C (lit.)
119.0 °C (monoclinic) (lit.)

density

2.07 g/mL at 25 °C

SMILES string

[S]

InChI

1S/S

InChI key

NINIDFKCEFEMDL-UHFFFAOYSA-N

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General description

Elemental sulfur exists in thirty different solid allotropes of which orthorhombic sulfur is the only thermodynamically stable form under normal temperature and pressure. It dissolves in a number of organic solvents and forms a large number of oxyacids. Sulfur is generally highly reactive; the S8 ring of elemental sulfur is easily broken by a number of nucleophilic reactants. The hydroxyl ions react with S at about 100oC.

Application

It finds applications in Li-S polymer batteries and as semiconductor-sensitizer layer CdS/CdSe/ZnS for solar cells.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Skin Irrit. 2

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Effects of Nanosized Adsorbing Material on Electrochemical Properties of Sulfur Cathodes for LiOS Secondary Batteries
Journal of the Electrochemical Society, 151(6), A791-A795 (2004)
Preparation and electrochemical properties of lithium-sulfur polymer batteries
Journal of Power Sources, 109(1), 89-97 (2002)
Multilayered semiconductor (CdS/CdSe/ZnS)-sensitized TiO2 mesoporous solar cells: all prepared by successive ionic layer adsorption and reaction processes.
Chemistry of Materials, 22(19), 5636-5643 (2010)
Lingli Huang et al.
Science advances, 6(47) (2020-11-20)
Low-dimensional materials usually exhibit mechanical properties from those of their bulk counterparts. Here, we show in two-dimensional (2D) rhenium disulfide (ReS2) that the fracture processes are dominated by a variety of previously unidentified phenomena, which are not present in bulk
Yu Kobayashi et al.
ACS nano, 9(4), 4056-4063 (2015-03-27)
Atomic-layer transition metal dichalcogenides (TMDCs) have attracted appreciable interest due to their tunable band gap, spin-valley physics, and potential device applications. However, the quality of TMDC samples available still poses serious problems, such as inhomogeneous lattice strain, charge doping, and

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