Our Ammonium Hydroxide (28-30% ammonia by weight) is a versatile chemical used in various applications, including metal patination and fuming wood to enrich its natural color.
Colorless liquid with strong odor. Use caution – liquid and vapor extremely irritating, especially to eyes.
Molarity: 14.8M
Specific Gravity: .898
Used in the following patina formulas:
- No. 9 for Light Green
- No. 12 for Purple to Light Green
- No. 18 for Purple
For shipping, Ammonium Hydroxide is in hazardous materials Class 8: Corrosive Substances. It only ships to destinations within the 48 contiguous US states and Canada using Standard Ground by FedEx or UPS • No air deliveries allowed • Customers in Canada should expect additional duties, taxes, and customs clearance service fees due upon delivery.











