HOT BLACKENING SALT( VCFERROUS)
What is VCFERROUS Hot Blackening Salt?
1. Definition:
- VCFERROUS: A proprietary blend of chemicals specifically formulated for use in hot black oxide processes. It’s designed to produce a uniform, durable black finish on ferrous metals.
- Black Oxide Coating: This is a conversion coating that transforms the surface layer of metal into a magnetite (Fe3O4) layer, providing both aesthetic and functional benefits.
2. Composition:
- Alkaline Salts: VCFERROUS typically contains a mixture of sodium hydroxide (NaOH) and sodium nitrate (NaNO3), which are essential for the oxidation process.
- Nitrate/Nitrite Salts: Sodium nitrite (NaNO2) or other nitrates are often included to facilitate the formation of the black oxide layer at high temperatures.
3. Temperature Range:
- The hot blackening process with VCFERROUS operates at high temperatures, usually around 285-300°F (140-150°C). Maintaining this temperature is crucial for effective coating.
Keywords
use
150°
NaNO
NaOH
mixture
285-300°
formation
aesthetic
magnetite
chemicals
Composition
Fe3O4) layer
surface layer
1. Definition
other nitrates
Sodium nitrite
sodium nitrate
Alkaline Salts
ferrous metals
sodium hydroxide
high temperatures
proprietary blend
effective coating
oxidation process
black oxide layer
conversion coating
functional benefits
Black Oxide Coating
3. Temperature Range
Nitrate/Nitrite Salts
hot blackening process
hot black oxide processes
VCFERROUS Hot Blackening Salt
uniform, durable black finish
