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339741

Sigma-Aldrich

Sulfuric acid

99.999%

Synonym(s):

Dihydrogen sulfate, Oil

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About This Item

Linear Formula:
H2SO4
CAS Number:
7664-93-9
Molecular Weight:
98.08
Beilstein/REAXYS Number:
2037554
EC Number:
231-639-5
MDL number:
MFCD00064589
UNSPSC Code:
12352301
PubChem Substance ID:
24860672
NACRES:
NA.22

agency

suitable for SM 5210

Quality Level

200

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
GHS05

signalword

Danger

hcodes

H290,H314

Hazard Classifications

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

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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