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Sigma-Aldrich

Sulfuric acid

99.999%

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Synonym(s):
Dihydrogen sulfate, Oil
Linear Formula:
H2SO4
CAS Number:
Molecular Weight:
98.08
Beilstein:
2037554
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Agency

suitable for SM 5210

Quality Level

vapor density

<0.3 (25 °C, vs air)

vapor pressure

1 mmHg ( 146 °C)

description

Nominally 95-98% H2SO4

Assay

99.999%

form

viscous liquid

color

clear

pH

1.2 (5 g/L)

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 is a strong mineral acid, that is commonly used in organic synthesis as a reagent, catalyst, and solvent. It is also useful to perform several functions, including dehydration, sulfonation, and nitration.

Application

Sulfuric acid is used:
  • As a catalyst in the esterification of acetic and palmitic acid.
  • As a solvent in the synthesis of binary technetium sulfide via the reaction of pertechnetate and hydrogen sulfide.
  • As a dehydrating agent, catalyst, and active reactant in the chemical industry.
  • To prepare silica-sulfuric acid composite, which is used as a catalyst in organic synthesis.

Analysis Note

Purity based on trace metals

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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Preparation of activated carbons previously treated with sulfuric acid: a study of their adsorption capacity in solution
Cuerda-Correa EM, et al.
Applied Surface Science, 252(17), 6042-6045 (2006)
Hicks R
Stable Radicals: Fundamentals and Applied Aspects of Odd-Electron Compounds null
Silica sulfuric acid and silica chloride as efficient reagents for organic reactions
Salehi P, et al.
Current Organic Chemistry, 10(17), 2171-2189 (2006)
Analysis of Malondialdehyde, Chlorophyll Proline, Soluble Sugar, and Glutathione Content in Arabidopsis seedling
Zhang Z, et al.
Bio-protocol, 3(14) (2013)
The Mechanical Performance of a Biomimetic Nanointerface Made of Multilayered Polyelectrolytes.
Cavelier S, et al.
European Journal of Inorganic Chemistry, 32, 5380-5389 (2012)

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Acid and base chart lists the strength of acids and bases (strongest to weakest) in order. Simple to use laboratory reference chart for scientists, researchers and lab technicians.

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