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

Sobre este item

Fórmula empírica (Notação de Hill):

S

Número CAS:

7704-34-9

Peso molecular:

32.07

Número CE:

231-722-6

Número MDL:

MFCD00085316

Código UNSPSC:

12141912

ID de substância PubChem:

329750348

NACRES:

SB.54

densidade de vapor

8.9 (vs air)

Nível de qualidade

100

pressão de vapor

1 mmHg ( 183.8 °C)
10 mmHg ( 246 °C)

grau

puriss.

Ensaio

99.5-100.5%

Formulário

solid

temperatura de autoignição

450 °F

qualidade

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

resistividade

2E23 μΩ-cm, 20°C

Impurezas

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

resíduo de ignição

≤0.2% (as SO₄)
≤0.3%

p.e.

444.7 °C (lit.)

pf

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

solubilidade

carbon disulfide: in accordance 1 g/5mL

traços de ânion

chloride (Cl^-): ≤100 mg/kg
sulfate (SO₄^2-): ≤100 mg/kg
sulfide (S^2-): ≤10 mg/kg

traços de cátion

As: ≤40 mg/kg

adequação

complies for appearance of solution
corresponds for odor

cadeia de caracteres SMILES

[S]

InChI

1S/S

chave InChI

NINIDFKCEFEMDL-UHFFFAOYSA-N

Descrição geral

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).[1] It is also an important element required for plant growth, since it is useful in lowering the pH of the soil.[2]