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339741

Sigma-Aldrich

Sulfuric acid

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:
2037554
EC Number:
231-639-5
MDL number:
MFCD00064589
UNSPSC Code:
12352301
PubChem Substance ID:
24860672
NACRES:
NA.22
Agency:
suitable for SM 5210
pH:
1.2 (5 g/L)
Pricing and availability is not currently available.

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.)

solubility

water and organic: soluble

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. [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]

Analysis Note

Purity based on trace metals

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCX1017
MKCW2363
MKCT5466
MKCS5290
MKCQ8785

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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)
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)
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Questions

1–5 of 5 Questions  

  1. 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

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  2. 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/449/386/product-dating-information-mk.pdf

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  3. 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.

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

    1 answer

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

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  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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    5 out of 5 stars.

    Concerntrated Sulfuric Acid

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

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