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84683

Sigma-Aldrich

Sulfur

purum p.a., ≥99% (T)

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About This Item

Fórmula empírica (notación de Hill):
S
Número de CAS:
7704-34-9
Peso molecular:
32.07
EC Number:
231-722-6
MDL number:
MFCD00085316
UNSPSC Code:
12141912
PubChem Substance ID:
329769307
NACRES:
NA.21

vapor density

8.9 (vs air)

vapor pressure

1 mmHg ( 183.8 °C)
10 mmHg ( 246 °C)

grade

purum p.a.

assay

≥99% (T)

form

powder

autoignition temp.

450 °F

resistivity

2E23 μΩ-cm, 20°C

ign. residue

≤0.2%

bp

444.7 °C (lit.)

mp

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

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Na: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

[S]

InChI

1S/S

InChI key

NINIDFKCEFEMDL-UHFFFAOYSA-N

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General description

Sulfur is a chalcogen (ore forming element). It is present in abundant quantities in marine and freshwater sediments. It exists in various forms such as pyrite, acid volatile sulfides, elemental sulfur, sulfates and organic sulfur. Quantitative estimation of reduced inorganic sulfur compounds in modern sediments and shales by a chromium reduction technique has been described. Elemental sulfur is employed for the synthesis of arsenic monosulfide and benzothiazole.

Application

Sulfur has been employed as a reactant in the preparation of Cu-doped iron sulfides.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315

Hazard Classifications

Skin Irrit. 2

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

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Paweł Wyżga et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(23), 5245-5256 (2020-01-17)
The homogeneity range of ternary iron indium thiospinel at 873 K was investigated. A detailed study was focused on two distinct series (y=z): 1) a previously reported charge-balanced (In0.67+0.33y □0.33-0.33y )tetr [In2-z Fez ]oct S4 (A1-series; □ stands for vacancy; the abbreviations
Xiao-Chen Liu et al.
Science advances, 6(7), eaay4092-eaay4092 (2020-02-29)
Intercalated transition metal dichalcogenides (TMDs) have attracted substantial interest due to their exciting electronic properties. Here, we report a unique approach where copper (Cu) atoms from bulk Cu solid intercalate spontaneously into van der Waals (vdW) gaps of group IV
The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales.
Canfield DE, et al.
Chemical Geology , 54(1), 149-155 (1986)
Dui Ma et al.
Nature communications, 10(1), 3367-3367 (2019-07-31)
Aqueous polysulfide/iodide redox flow batteries are attractive for scalable energy storage due to their high energy density and low cost. However, their energy efficiency and power density are usually limited by poor electrochemical kinetics of the redox reactions of polysulfide/iodide ions on
Aidan A E Fisher et al.
ACS nano, 11(8), 7829-7840 (2017-07-06)
Semiconductor nanocrystals or quantum dots (QDs) are now widely used across solar cell, display, and bioimaging technologies. While advances in multishell, alloyed, and multinary core-shell QD structures have led to improved light-harvesting and photoluminescence (PL) properties of these nanomaterials, the
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