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320501

Sigma-Aldrich

Ácido sulfúrico

ACS reagent, 95.0-98.0%

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About This Item

Fórmula linear:
H2SO4
Número CAS:
7664-93-9
Peso molecular:
98.08
Beilstein:
2037554
Número CE:
231-639-5
Número MDL:
MFCD00064589
Código UNSPSC:
12352106
ID de substância PubChem:
329753980

grau

ACS reagent

densidade de vapor

<0.3 (25 °C, vs air)

pressão de vapor

1 mmHg ( 146 °C)

descrição

Free from suspended or insoluble matter
Nominally 95-98% H2SO4

Ensaio

95.0-98.0%

forma

liquid

resíduo de ignição

≤5 ppm

cor

APHA: ≤10

pH

1.2 (5 g/L)

pb

~290 °C (lit.)

densidade

1.840 g/mL at 25 °C (lit.)

traços de ânion

MnO4- reducers: ≤2 ppm
chloride (Cl-): ≤0.2 ppm
nitrate (NO3-): ≤0.5 ppm

traços de cátion

As: ≤0.01 ppm
Fe: ≤0.2 ppm
Hg: ≤5 ppb
NH4+: ≤2 ppm
heavy metals (as Pb): ≤1 ppm

cadeia de caracteres SMILES

OS(O)(=O)=O

InChI

1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

chave InChI

QAOWNCQODCNURD-UHFFFAOYSA-N

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Pictogramas

Corrosion
GHS05

Palavra indicadora

Danger

Frases de perigo

H290,H314

Classificações de perigo

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Código de classe de armazenamento

8B - Non-combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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Atmospheric new-particle formation affects climate and is one of the least understood atmospheric aerosol processes. The complexity and variability of the atmosphere has hindered elucidation of the fundamental mechanism of new-particle formation from gaseous precursors. We show, in experiments performed
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Nucleation of aerosol particles from trace atmospheric vapours is thought to provide up to half of global cloud condensation nuclei. Aerosols can cause a net cooling of climate by scattering sunlight and by leading to smaller but more numerous cloud
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Atmospheric aerosols formed by nucleation of vapors affect radiative forcing and therefore climate. However, the underlying mechanisms of nucleation remain unclear, particularly the involvement of organic compounds. Here, we present high-resolution mass spectra of ion clusters observed during new particle
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