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84727

Supelco

Sulfuric acid

for the determination of nitrogen, ≥97.0%

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About This Item

Linear Formula:
H2SO4
CAS Number:
Molecular Weight:
98.08
Beilstein:
2037554
EC Number:
MDL number:
UNSPSC Code:
12000000
PubChem Substance ID:
NACRES:
NA.21

grade

for inorganic trace analysis

Quality Level

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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)
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
Toshika Ohkawa et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 34(24), 8151-8163 (2014-06-13)
Autoimmune forms of encephalitis have been associated with autoantibodies against synaptic cell surface antigens such as NMDA- and AMPA-type glutamate receptors, GABA(B) receptor, and LGI1. However, it remains unclear how many synaptic autoantigens are yet to be defined. Using immunoproteomics

Related Content

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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