Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436

Sulfuric Acid, Reagent, 18 M


F.W. 98.08

Safety Purchase Suggestion: Buy and store only small package sizes and small quantities. For safety reasons, Flinn offers larger sizes of sulfuric acid (S0145) and other hazardous substances in PVC-coated bottles. We have attempted to price the products in these safer containers as low as possible. In the event of breakage, acid and glass shards are safely retained in a PVC outer envelope. The PVC-coated bottle is a safer package for science teachers. Cap Safety Color Code: Yellow

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Hazard Alert

Severely corrosive to eyes, skin and other tissue; considerable heat of dilution with water; mixing with water may cause spraying and spattering. Solutions might best be made by immersing the mixing vessel in an ice bath. Even very dilute solutions are harmful to eyes and skin. Always add the acid to water, never the reverse; extremely hazardous in contact with finely divided materials, carbides, chlorates, nitrates and other combustible materials. LD50 2140 mg/kg. TLV 1 mg/m3.

Product Details

Inorganic #9 in a dedicated acid cabinet and away from any source of water; if an acid cabinet is not available, store in a Flinn Saf-Cube™.
Shelf Life:
Good, but only if stored away from water and under safe conditions. Sulfuric acid has an affinity to water—abstracting it from the air and from organic substances, hence it chars wood, sugar, etc. If sulfuric acid has turned dark brown on your shelf, its purity would be in question.
Water, evolving very considerable heat. Use an ice bath.
Sulfur; sulfurous.
CAS No.:
Technical Note:
Technical Note: Spilled sulfuric acid presents a very slippery floor problem. We hope you understand why it is essential to maintain a bucket of dry sand in the area where sulfuric acid is stored.