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13803

Sigma-Aldrich

Sulfur

99.5-100.5%, puriss., meets analytical specification of Ph. Eur., BP, USP, precipitated

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About This Item

Empirical Formula (Hill Notation):
S
CAS Number:
7704-34-9
Molecular Weight:
32.07
EC Number:
231-722-6
MDL number:
MFCD00085316
UNSPSC Code:
12141912
PubChem Substance ID:
329750348
NACRES:
SB.54

vapor density

8.9 (vs air)

vapor pressure

1 mmHg ( 183.8 °C)
10 mmHg ( 246 °C)

grade

puriss.

Assay

99.5-100.5%

form

solid

autoignition temp.

450 °F

quality

meets analytical specification of Ph. Eur., BP, USP
precipitated

resistivity

2E23 μΩ-cm, 20°C

impurities

acidity or alkalinity, complies
 residual solvents, complies
≤0.01% free alkali (as NaOH)
≤0.02% free acid (as H2SO4)
≤0.5% water (Karl Fischer)

ign. residue

≤0.2% (as SO4)
≤0.3%

bp

444.7 °C (lit.)

mp

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

solubility

carbon disulfide: in accordance 1 g/5mL

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg
sulfide (S2-): ≤10 mg/kg

cation traces

As: ≤40 mg/kg

suitability

complies for appearance of solution
corresponds for odor

SMILES string

[S]

InChI

1S/S

InChI key

NINIDFKCEFEMDL-UHFFFAOYSA-N

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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
GHS07

Signal Word

Warning

Hazard Statements

H315

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 2: Flammable solids
Sulfur
Hazardous rank II

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

13803-VAR-R:
13803-25KG-R:
13803-25KG-H:
13803-1KG-R:
13803-6X1KG-R:
13803-6X2.5KG-R:
13803-2.5KG-R:
13803-BULK-R:

Certificates of Analysis (COA)

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Sulfur as the key element for quantitative protein analysis by capillary liquid chromatography coupled to element mass spectrometry
Wind M, et al.
Angewandte Chemie (International Edition in English), 42(29), 3425-3427 (2003)
Mccarty.B.L et al.
Fundamentals of Turfgrass and Agricultural Chemistry (2003)
Electron microscopy study of CVT grown Fe-sulphides.
Zavasnik J and Recnik A.
Journal of Crystal Growth, 367, 18-23 (2013)

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