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Documentos

84727

Supelco

Ácido sulfúrico

for the determination of nitrogen, ≥97.0%

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About This Item

Fórmula lineal:
H2SO4
Número de CAS:
7664-93-9
Peso molecular:
98.08
Beilstein/REAXYS Number:
2037554
EC Number:
231-639-5
MDL number:
MFCD00064589
UNSPSC Code:
12000000
PubChem Substance ID:
329769317
NACRES:
NA.21

grade

for inorganic trace analysis

Quality Level

100

agency

suitable for SM 4500 - NH3

vapor density

<0.3 (25 °C, vs air)

vapor pressure

1 mmHg ( 146 °C)

description

Nominally 95-98% H2SO4

assay

≥97.0%

form

liquid

quality

for the determination of nitrogen

impurities

≤0.0005% total nitrogen (N)

ign. residue (900°C)

≤0.0005%

color

clear

bp

~290 °C (lit.)

density

1.840 g/mL at 25 °C (lit.)

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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General description

Sulfuric acid can be produced by dry distillation of iron sulfate heptahydrate, copper sulfate pentahydrate. When these compounds were heated they decompose to form iron and copper oxides eliminating water and sulphur trioxide which combine together to form dilute solution of sulphuric acid. It is suitable as dehydrating agent, catalyst, active reactant in chemical industry. It is also suitable to control pH of saline solutions to strong fuming acids.

Application

Sulfuric acid may be used as digestive reagent in Kjeldahl method to determine nitrogen.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
STBL4800
STBL4801
STBL4391
STBL3532
STBL3026

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Ácido sulfúrico al 95 - 97 % for analysis EMSURE&#174; ISO

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Ácido sulfúrico al 95 - 97 %

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Ácido sulfúrico

Navin G. Ashar, Kiran R. Golwalkar
A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents (2013)
Nitrogen determination by a continuous digestion and analysis system.
Ferrari, Andres.
Annals of the New York Academy of Sciences, 87, 792-800 (1960)
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
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
Andreas Recke et al.
Journal of immunology (Baltimore, Md. : 1950), 193(4), 1600-1608 (2014-07-16)
Subepidermal autoimmune blistering dermatoses (AIBD) are prototypic autoantibody-mediated diseases. In epidermolysis bullosa acquisita (EBA), an autoimmune disease with severe and chronic skin blistering, autoantibodies are directed against type VII collagen. IgG is the predominant autoantibody isotype of EBA, the pathogenicity
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