# Diluting Sulfuric Acid: Why You Add Acid to Water, Not Water to Acid

> Sulfuric acid is classified Danger under GHS, with hazards including May be corrosive to metals (H290) and Causes severe skin burns and eye damage (H314).

**Chemicals:** Sulfuric acid (CAS 7664-93-9)

**GHS signal word:** Danger

## GHS hazard statements

- **H290** — May be corrosive to metals
- **H314** — Causes severe skin burns and eye damage

## Precautionary statements

- **P234** — Keep only in original container
- **P260** — Do not breathe dust/fume/gas/mist/vapours/spray
- **P264** — Wash hands thoroughly after handling
- **P280** — Wear protective gloves/protective clothing/eye protection/face protection
- **P301+P330+P331** — IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- **P303+P361+P353** — IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower
- **P304+P340** — IF INHALED: Remove person to fresh air and keep comfortable for breathing
- **P305+P351+P338** — IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing
- **P310** — Immediately call a POISON CENTER or doctor
- **P321** — Specific treatment
- **P363** — Wash contaminated clothing before reuse
- **P390** — Absorb spillage to prevent material damage
- **P405** — Store locked up
- **P501** — Dispose of contents/container in accordance with local regulations

## SDS safety rules

- (storage) Keep in a dry, cool and well-ventilated place.
  - Incompatible with: Sulfuric acid

## Source

- Source type: canonical
- Supplier: Life Technologies Corporation
- SDS version: 2
- SDS revision date: 2018-06-26
- Region: US
- Last verified by MSDS Chain: 2026-07-15

Canonical page: https://safety.msdschain.lagentbot.com/diluting-sulfuric-acid-add-acid-to-water/

_Published by MSDS Chain (msdschain.lagentbot.com). Reference information, not a substitute for the manufacturer SDS or professional EHS judgement._