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13825

Sigma-Aldrich

Sulfur

powder, ≥99.0%

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Empirical Formula (Hill Notation):
S
CAS Number:
Molecular Weight:
32.07
MDL number:
PubChem Substance ID:
NACRES:
NA.55

vapor density

8.9 (vs air)

Quality Level

vapor pressure

1 mmHg ( 183.8 °C)
10 mmHg ( 246 °C)

assay

≥99.0%

form

powder

autoignition temp.

450 °F

resistivity

2E23 μΩ-cm, 20°C

ash

≤3%

pH

6 (20 °C, 10 g/L)

bp

444.7 °C (lit.)

mp

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

SMILES string

[S]

InChI

1S/S

InChI key

NINIDFKCEFEMDL-UHFFFAOYSA-N

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1 of 4

This Item
21329241498013803
vibrant-m

13825

Sulfur

-
vibrant-m

213292

Sulfur

-
vibrant-m

414980

Sulfur

-
vibrant-m

13803

Sulfur

Essential Grade
Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

assay

≥99.0%

assay

99.998% trace metals basis

assay

99.98% trace metals basis

assay

99.5-100.5%

vapor pressure

1 mmHg ( 183.8 °C), 10 mmHg ( 246 °C)

vapor pressure

1 mmHg ( 183.8 °C), 10 mmHg ( 246 °C)

vapor pressure

1 mmHg ( 183.8 °C), 10 mmHg ( 246 °C)

vapor pressure

1 mmHg ( 183.8 °C), 10 mmHg ( 246 °C)

mp

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

mp

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

mp

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

mp

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

pH

6 (20 °C, 10 g/L)

pH

-

pH

-

pH

-

General description

Sulfur is present in abundant quantities in marine and freshwater sediments. It exists in the form of various sulfur compounds 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.
Sulfur is naturally present in cysteine and methionine amino acids, which can be detected by inductively coupled plasma mass spectrometry(ICP-MS). It is also an important element required for plant growth, since it is useful in lowering the pH of the soil.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Skin Irrit. 2

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

WGK 1

flash_point_f

404.6 °F - closed cup

flash_point_c

207 °C - closed cup


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Wind M, et al.
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