Merck
所有图片(1)

320501

Sigma-Aldrich

硫酸

ACS reagent, 95.0-98.0%

线性分子式:
H2SO4
CAS号:
分子量:
98.08
Beilstein:
2037554
EC 号:
MDL编号:
PubChem化学物质编号:

等级

ACS reagent

蒸汽密度

<0.3 (25 °C, vs air)

蒸汽压

1 mmHg ( 146 °C)

描述

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

测定

95.0-98.0%

形式

liquid

灼烧残渣

≤5 ppm

颜色

APHA: ≤10

pH值(酸碱度)

1.2 (5 g/L)

bp

~290 °C (lit.)

密度

1.840 g/mL at 25 °C (lit.)

痕量阴离子

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

痕量阳离子

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

SMILES string

OS(O)(=O)=O

InChI

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

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

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相关类别

象形图

Corrosion

警示用语:

Danger

危险声明

危险分类

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

储存分类代码

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

分析证书

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原产地证书 (CofO)

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João Almeida et al.
Nature, 502(7471), 359-363 (2013-10-08)
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
I A Panagiotopoulos et al.
Bioresource technology, 130, 570-577 (2013-01-22)
A two-stage pretreatment approach, employing steam followed by organosolv treatment, was assessed for its ability to fractionate and recover most of the hemicellulose, lignin and cellulose components of poplar wood chips. A mild steaming stage was initially used to maximise
Francesco Riccobono et al.
Science (New York, N.Y.), 344(6185), 717-721 (2014-05-17)
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
Sam Wouters et al.
Journal of chromatography. A, 1355, 253-260 (2014-06-30)
A microfluidic membrane suppressor has been constructed to suppress ions of alkaline mobile-phases via an acid-base reaction across a sulfonated poly(tetrafluoroethylene)-based membrane and was evaluated for anion-exchange separations using conductivity detection. The membrane was clamped between two chip substrates, accommodating
Siegfried Schobesberger et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(43), 17223-17228 (2013-10-09)
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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