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  • Ammonium Hydroxide, 16oz
  • Ammonium Hydroxide, 16oz
  • Ammonium Hydroxide Label
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Chemical Grade: ACS Reagent
Concentration: 26 Baumé
Assay: 28 to 30% by weight.
Formula: NH4OH
CAS: 1336-21-6
U.S. DOT: UN2672, Class 8, PG III
Get the SDS: Download
Return Policy: See Below.
No Fly Shipping! Only via Standard Ground
- USA & Canada.
Other products by The Science Company
Cat No. - NC-2095
Price: $18.95


This Ammonium Hydroxide is commonly used by metal artists in several patina formulas. It contains 28 to 30% ammonia by weight and is a colorless liquid with strong odor. Use caution - liquid and vapor extremely irritating, especially to eyes.

Molarity: 14.8M
Specific Gravity: .898

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

Used in the following patina formulas:

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.

INTERNATIONAL SHIPPING: 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.