258105

Sulfuric acid

ACS reagent, 95.0-98.0%

• Linear Formula: H₂SO₄
• CAS Number: 7664-93-9
• Molecular Weight: 98.08
• Beilstein: 2037554
• EC Number: 231-639-5
• MDL number: MFCD00064589
• UNSPSC Code: 12352106
• PubChem Substance ID: 329752826
• NACRES: NA.21

Properties

• grade: ACS reagent
• Quality Level: 200
• Agency: suitable for EPA 1613; suitable for SM 4500 - NH3; suitable for SM 5210
• vapor density: <0.3 (25 °C, vs air)
• vapor pressure: 1 mmHg ( 146 °C)
• description: Free from suspended or insoluble matter; Nominally 95-98% H₂SO₄
• Assay: 95.0-98.0%
• form: liquid
• 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)
• InChI key: QAOWNCQODCNURD-UHFFFAOYSA-N

Description

Application

Sulfuric acid can be used as a catalyst:

• In the hydrolysis of primary or secondary nitroalkane salts to aldehydes or ketones.
• In the selective hydrolysis of nitriles to amides.
• To synthesize amides of t-alkylcarbinamines via Ritter reaction between nitriles and alkenes.
• To prepare 3,4-dialkyl-2(5H)-furanones by carbonylation of α,β-unsaturated aldehydes.
• In the nitration of aromatic carbocycles and heteroaromatic compounds.
• In the Friedel–Craft ketone synthesis using anhydrides via α-amidoalkylation reaction.

H₂SO₄ can also be used in the following reactions:

• Michael′s addition reactions
• Electrophilic substitution reactions
• Esterification of highly hindered aromatic acids
• Aldol condensation reaction
• Beckmann rearrangement
• Hofmann–Loffler–Freytag reaction
• Isomerization
• Dehydrogenation
• Sulfonation

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 Information

• Pictograms: GHS05
• Signal Word: Danger
• Hazard Statements: H290 - H314
• Precautionary Statements: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• 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