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84727

Supelco

Acide sulfurique

for the determination of nitrogen, ≥97.0%

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About This Item

Formule linéaire :
H2SO4
Numéro CAS:
7664-93-9
Poids moléculaire :
98.08
Numéro Beilstein :
2037554
Numéro CE :
231-639-5
Numéro MDL:
MFCD00064589
Code UNSPSC :
12000000
ID de substance PubChem :
329769317
Nomenclature NACRES :
NA.21

Qualité

for inorganic trace analysis
for the determination of nitrogen

Niveau de qualité

100

Agence

suitable for SM 4500 - NH3

Densité de vapeur

<0.3 (25 °C, vs air)

Pression de vapeur

1 mmHg ( 146 °C)

Description

Nominally 95-98% H2SO4

Pureté

≥97.0%

Forme

liquid

Impuretés

≤0.0005% total nitrogen (N)

Résidus de calcination (900 °C)

≤0.0005%

Couleur

clear

Point d'ébullition

~290 °C (lit.)

Densité

1.840 g/mL at 25 °C (lit.)

Chaîne SMILES 

OS(O)(=O)=O

InChI

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

Clé InChI

QAOWNCQODCNURD-UHFFFAOYSA-N

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Description générale

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.

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H290,H314

Classification des risques

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

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

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

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
STBL4800
STBL4801
STBL4391
STBL3532
STBL3026

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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
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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
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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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