• Cupric Sulfate Pentahydrate, Crystal, 500g
  • Cupric Sulfate Pentahydrate, Crystal, 500g
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Chemical Grade: Technical. Crystals.
Formula: CuSO4•5H2O
CAS: 7758-99-8
U.S. DOT: UN3077, Class 9, PG III
Get the SDS: Download
Return Policy: See Below.
No Fly Shipping! Only via Standard Ground
- within contiguous USA.
Discount: Buy at least 12, save 15%
Cat No. - NC-0304
Price: $14.95


  • Cupric sulfate (copper sulfate) in the form of blue, medium sized crystals.
  • When burned, cupric sulfate produces a green flame color.
  • Soluble in water and methanol; slightly soluble in ethyl alcohol and glycerin.

Used in the following patina formulas:

Cupric sulfate readily forms blue, triclinic crystals. Read our article, "Growing Large Crystals with Seed Crystals" for more information.

Cupric Sulfate only ships to destinations within the 48 contiguous US states and Canada using Standard Ground. No air deliveries allowed.


For chemical quality assurance our chemicals are "factory fresh" from qualified industrial chemical suppliers. To ensure top quality we CANNOT ACCEPT RETURNS on chemical purchases, even if the container is unopened.


Hazardous chemicals are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada.