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84683

Sigma-Aldrich

Sulfur

purum p.a., ≥99% (T)

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About This Item

Formula empirica (notazione di Hill):
S
Numero CAS:
7704-34-9
Peso molecolare:
32.07
Numero CE:
231-722-6
Numero MDL:
MFCD00085316
Codice UNSPSC:
12141912
ID PubChem:
329769307
NACRES:
NA.21

Densità del vapore

8.9 (vs air)

Tensione di vapore

1 mmHg ( 183.8 °C)
10 mmHg ( 246 °C)

Grado

purum p.a.

Saggio

≥99% (T)

Forma fisica

powder

Temp. autoaccensione

450 °F

Resistività

2E23 μΩ-cm, 20°C

Residuo alla calcinazione

≤0.2%

P. eboll.

444.7 °C (lit.)

Punto di fusione

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

Anioni in tracce

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

Cationi in tracce

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

Stringa SMILE

[S]

InChI

1S/S
NINIDFKCEFEMDL-UHFFFAOYSA-N

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Descrizione generale

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.

Applicazioni

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

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H315

Classi di pericolo

Skin Irrit. 2

Codice della classe di stoccaggio

4.1B - Flammable solid hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

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