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Merck
CN

13803

Sulfur

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

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About This Item

Empirical Formula (Hill Notation):
S
CAS Number:
7704-34-9
Molecular Weight:
32.07
NACRES:
SB.54
PubChem Substance ID:
329750348
UNSPSC Code:
12141912
EC Number:
231-722-6
MDL number:
MFCD00085316
Assay:
99.5-100.5%
Form:
solid
Solubility:
carbon disulfide: in accordance 1 g/5mL

Key Documents

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Product Name

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

Quality Level

100

InChI key

NINIDFKCEFEMDL-UHFFFAOYSA-N

InChI

1S/S

SMILES string

[S]

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

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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

signalword

Warning

hcodes

H315

Hazard Classifications

Skin Irrit. 2

Storage Class

4.1B - Flammable solid hazardous materials

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
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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ6221
MKCX6454
MKCV8579
MKCV8366
MKCT5645

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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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