Black Rhodium

Black Rhodium - black rhodium plating by Betzmann Galvanik

The ready-to-use black rhodium electrolyte is suitable for both pin, pad and bath electroplating!

It deposits dark anthracite-gray, extremely decorative rhodium layers. The layers are very abrasion resistant, color consistent and uniform.

The Black Rhodium Electrolyte from Betzmann Galvanik is preferred for decorative coatings in the jewelry and eyewear industries. This black rhodium electrolyte is characterized by simple bath management and very user-friendly handling. It also operates at room temperature, which means that time- and energy-consuming heating can be omitted. Layers down to 0.5 µm can be deposited.

Operating data:

Rhodium content: 2.0 g/l Rh

pH value: <1

Density: 1.02-1.07 g/cm3

Working conditions:

Voltage: 2.7 -3 volts

Bath temperature: 20-27°C

Exposure time: 2 min. (1-5 min.)

Mixed oxide anodes/platinized titanium, graphite electrode

Anode/cathode surface: 1 : 1

Current density: 1.0-1.5 A/dm2

Fabric movement: required

Bath filtration: from 10 liters

deposition rate: 6-8mg/Amin

Precipitation data:

Hardness: 300-370 HV

Layer thickness: max. 0.5 µm

Density: approx. 10.5 g/cm3

Delivery form:

Ready for use 

A descaling with 10% sulfuric acid of the surface to be coated is recommended!

For guidelines see download area!

Darker coatings can be obtained with our blackening additive

Safety:

   
Signal word: Danger

H-phrases:

H290: May be corrosive to metals.

H314: Causes severe skin burns and eye damage.

H412: Harmful to aquatic life with long lasting effects.

P phrases:

P102: Keep out of the reach of children.

P234: Keep only in original container.

P260: Do not breathe aerosol. P280: Wear protective gloves / eye protection.

P301 + P330 + P331: IF INTOXICATED: Rinse out mouth. Do NOT induce vomiting.

P303 + P361 + P353: IF IN CONTACT WITH SKIN (or hair): Remove all contaminated clothing immediately. Wash skin with water/shower.

P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove existing contact lenses if possible. Continue to rinse.

P501: Dispose of contents/container to hazardous waste. 

Causes severe skin burns and eye damage. Toxic to aquatic life with long lasting effects.

IF IN EYES: Rinse cautiously with water for several minutes. Remove existing contact lenses if possible. Continue to rinse. Absorb spillage. Keep under lock and key. Dispose of contents/container properly.