258105 Sigma-Aldrich

Sulfuric acid

ACS reagent, 95.0-98.0%

  • CAS Number 7664-93-9

  • Linear Formula H2SO4

  • Molecular Weight 98.08

  •  Beilstein/REAXYS Number 2037554

  •  EC Number 231-639-5

  •  MDL number MFCD00064589

  •  PubChem Substance ID 329752826

  •  NACRES NA.21



Related Categories ACS Grade Acids & Bases, Acids, Acids & Bases, Acids and Bases, Adsorbents, Filter Aids and Drying Agents,
Quality Level   200
grade   ACS reagent
vapor density   <0.3 (25 °C, vs air)
vapor pressure   1 mmHg ( 146 °C)
description   Nominally 95-98% H2SO4
assay   95.0-98.0%
form   liquid
appearance   Free from suspended or insoluble matter
ign. residue   ≤5 ppm
color   APHA: ≤10
pH   1.2 (5  g/L)
bp   ~290 °C (lit.)
density   1.840 g/mL at 25 °C (lit.)
anion traces   MnO4- reducers: ≤2 ppm
  chloride (Cl-): ≤0.2 ppm
  nitrate (NO3-): ≤0.5 ppm
cation traces   As: ≤0.01 ppm
  Fe: ≤0.2 ppm
  Hg: ≤5 ppb
  NH4+: ≤2 ppm
  heavy metals (as Pb): ≤1 ppm
SMILES string   OS(O)(=O)=O
InChI   1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)



1 L in PVC-coated bottle

100, 4×100 mL in glass bottle

2 L in glass bottle

2.5 L in PVC-coated bottle

2.5 L in poly bottle

500 mL in PVC-coated bottle

500 mL in glass bottle

500 mL in poly bottle

6×2.5 L in PVC-coated bottle

6×2.5 L in poly bottle

6×500 mL in PVC-coated bottle

6×500 mL in glass bottle

4 L in PVC-coated bottle

6×500 mL in poly bottle

Other Notes

ACS specifications same as product 320501

4L and 4X4L are packaged in poly bottles

SKU-Pack sizes with -PC are packaged in PVC coated glass bottles.

Safety & Documentation

Safety Information

GHS05  GHS05
Signal word 
Hazard statements 
UN 1830 8 / PGII
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
What is the concentration of Sulfuric acid, Product 258105, in moles per liter (M)?
This material has a calculated, theoretical concentration of 18 M.
How was the concentration of Sulfuric acid, Product 258105, calculated?
The molarity is calculated using the following equation:molarity=[(1000 X Density)/molecular weight] X (percent purity/100).
How is Sulfuric acid, Product 258105, to be stored?
This material is a room temperature storage item.
What is the shelf life of Sulfuric acid, Product 258105?
This material does not have an expiration or a recommended retest date established for it.Rather, we guarantee it for one year upon the date of receipt.
What is Sulfuric acid, Product 258105, dissolved in?
This material is not dissolved in anything.Rather it is pure sulfuric acid, which is a liquid at room temperature.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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