Sulfuric acid CAS 7664-93-9
Sulfuric acid (CAS 7664-93-9, formula H2O4S) is an industrial chemical with a molecular weight of about 98.08 g/mol. Its harmonised GHS classification carries the signal word Danger.
Identifiers
- Name
- Sulfuric acid
- CAS number
- 7664-93-9
- CLP index number
- 016-020-00-8
- EC number
- 231-639-5
- Molecular formula
- H2O4S
- Molecular weight
- 98.08 g/mol
- Also known as
- Sulphuric acid, Oil of vitriol, Battery acid, Dihydrogen sulfate, Sulfuric acid (98%), Concentrated sulfuric acid
GHS classification
Harmonised classification under the CLP Regulation (Annex VI), index number 016-020-00-8. Signal word: Danger.
| Hazard class | Code | Statement |
|---|---|---|
| Skin corrosion/irritation | H314 | Causes severe skin burns and eye damage. |
Pictograms
- GHS05 Corrosion
The harmonised entry for this substance applies at defined concentration ranges, and specific concentration limits and notes in Annex VI can change the classification of solutions and mixtures.
Suppliers may classify additional hazards from their own data, so a supplier's Safety Data Sheet can list more than the harmonised entry.
Source: Regulation (EC) No 1272/2008, Annex VI, retrieved 2026-10-10. Confirm against the current consolidated text and your supplier's SDS before relying on it.
Creating a Safety Data Sheet for a product containing Sulfuric acid
If Sulfuric acid is an ingredient, record its CAS number and concentration in Section 3 and use it in the mixture classification that drives Section 2 and the label.
How to write a Safety Data Sheet · GHS mixture classification
Prepare SDS and labels in SDS Desk
Add Sulfuric acid by name or CAS number, build your product composition and export a reviewed 16-section SDS. 7-day free trial.
Start free trialFrequently asked questions
- What is the CAS number of Sulfuric acid?
- The CAS Registry Number of Sulfuric acid is 7664-93-9.
- What is the chemical formula of Sulfuric acid?
- Sulfuric acid has the formula H2O4S and a molecular weight of about 98.08 g/mol.
- What are the GHS hazards of Sulfuric acid?
- Sulfuric acid carries the signal word Danger. Its harmonised hazard statements are H314: Causes severe skin burns and eye damage..
- Which GHS pictograms apply to Sulfuric acid?
- GHS05 (Corrosion).
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Information is provided for general reference and is not a substitute for a supplier's Safety Data Sheet or professional advice. See our disclaimer.