MilliporeSigma
All Photos(1)

339741

Sigma-Aldrich

Sulfuric acid

99.999%

Sign Into View Organizational & Contract Pricing

Select a Size

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

vapor density

<0.3 (25 °C, vs air)

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
SX1244SX124768279
Sulfuric acid 99.999%

Sigma-Aldrich

339741

Sulfuric acid

Sulfuric acid Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

SX1244

Sulfuric acid

Sulfuric Acid 95.5-96.5% OmniTrace

Supelco

SX1247

Sulfuric Acid 95.5-96.5%

Sulfuric acid concentrate 0.1&#160;M H2SO4 in water (0.2N), eluent concentrate for IC

Supelco

68279

Sulfuric acid concentrate

vapor pressure

1 mmHg ( 146 °C)

vapor pressure

0.0001 hPa ( 20 °C), 1 mmHg ( 146 °C)

vapor pressure

0.0001 hPa ( 20 °C), 1 mmHg ( 146 °C)

vapor pressure

-

assay

99.999%

assay

95.0-98.0%

assay

93-98%

assay

-

form

viscous liquid

form

liquid

form

liquid

form

liquid

pH

1.2 (5 g/L)

pH

0.3 (25 °C, 49 g/L in H2O)

pH

0.3 (25 °C, 49 g/L in H2O)

pH

-

bp

~290 °C (lit.)

bp

~290 °C (lit.)

bp

~290 °C (lit.)

bp

-

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

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (Example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 1

1 of 1

Sulfuric acid solution puriss. p.a., &#8805;25% (T)

Sigma-Aldrich

84736

Sulfuric acid solution

Silica sulfuric acid and silica chloride as efficient reagents for organic reactions
Salehi P, et al.
Current Organic Chemistry, 10(17), 2171-2189 (2006)
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
Esterification of free fatty acids using sulfuric acid as catalyst in the presence of triglycerides
Marchetti JM and Errazu AF
Biomass and Bioenergy, 32(9), 892-895 (2008)
The Mechanical Performance of a Biomimetic Nanointerface Made of Multilayered Polyelectrolytes.
Cavelier S, et al.
European Journal of Inorganic Chemistry, 32, 5380-5389 (2012)

Articles

Acid and Base Chart — Table of Acids & Bases

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.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service