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Merck

339741

Sulfuric acid

99.999%

Sulfuric acid

Synonym(s):

Dihydrogen sulfate, Oil

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About This Item

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

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Product Name

Sulfuric acid, 99.999%

InChI key

QAOWNCQODCNURD-UHFFFAOYSA-N

InChI

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

SMILES string

OS(O)(=O)=O

agency

suitable for SM 5210

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.)

solubility

water and organic: soluble

density

1.840 g/mL at 25 °C (lit.)

Quality Level

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This Item
1.00713
assay

99.999%

assay

95-97% (alkalimetric)

Quality Level

200

Quality Level

500

agency

suitable for SM 5210

agency

BP, JPE, NF, Ph. Eur., suitable for EPA 1613

form

viscous liquid

form

liquid

solubility

water and organic: soluble

solubility

-

pH

1.2 (5 g/L)

pH

0.3 (25 °C, 49 g/L in H2O)

Analysis Note

Purity based on trace metals

Application

Sulfuric acid is used:
  • As a catalyst in the esterification of acetic and palmitic acid. [1]
  • As a solvent in the synthesis of binary technetium sulfide via the reaction of pertechnetate and hydrogen sulfide. [2]
  • As a dehydrating agent, catalyst, and active reactant in the chemical industry[3][4].
  • To prepare silica-sulfuric acid composite, which is used as a catalyst in organic synthesis.[5]

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.

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


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Certificates of Analysis (COA)

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Analysis of Malondialdehyde, Chlorophyll Proline, Soluble Sugar, and Glutathione Content in Arabidopsis seedling
Zhang Z, et al.
Bio-protocol, 3(14) (2013)
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)
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)
Silica sulfuric acid and silica chloride as efficient reagents for organic reactions
Salehi P, et al.
Current Organic Chemistry, 10(17), 2171-2189 (2006)

Questions

1–5 of 5 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. What is the molarity of lot MKCS5290 for product 339741?

    1 answer
    1. The molarity of lot MKCS5290 for product 339741 is 18.76M.

      Helpful?

  4. What is the molarity or normality for Product 339741?

    1 answer
    1. The molarity of Product 339741 is 18.74 M, which means the normality is 37.4 since it is a diprotic acid.

      Helpful?

  5. what mineral is used to make sulfonic acid

    1 answer
    1. Product number 339741 represents sulfuric acid. The only 'mineral' present is sulfur. Any compounds used in the production or purification of this product would be considered proprietary. To address the question in reference to 'Sulfonic acid', this is a functional group and does not occur naturally. Therefore, no additional information can be provided.

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Reviews

1–2 of 2 Reviews  

Active Filters

    • Review 1
    • Votes 8
    5 out of 5 stars.

    Concerntrated Sulfuric Acid

    Item arrived within the expected time and specs were as described by company

    Helpful?

    • Review 1
    • Votes 2
    2 out of 5 stars.

    Bottle incompatible with material

    This bottle's materials of constructions (the cap? the liner? not sure) slowly generate black particulates in the acid, making it unsuitable for e.g. chromatographic applications. The product needs to be in a chemically compatible container.

    Helpful?

    1. Response from Merck KGaA:

      Please contact Technical Service regarding this issue. This sulfuric acid product is packaged in a clear glass bottle with a PTFE lined cap. Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.

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