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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)

Quality Level

100

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

易制爆化学品
危险化学品

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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Mccarty.B.L et al.
Fundamentals of Turfgrass and Agricultural Chemistry (2003)
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)
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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