Chromic Acid

Chromic Acid (Chromium Trioxide)
CAS : 7738-94-5. CrO3
The true chromic acid name for H2CrO4, Chromium Trioxide in solution.
Properties : Dark puplish or red crystal flake. Soluble in water, alcohol, and mineral acid. Deliquescent.
Density : 1.67 - 2.82.
Melting point : 196 C.


Derivation :
- Added Sulfuric acid to a solution of Sodium dichromate and the the product is crystallized out.
- Chromite is fused with soda ash and limestone and then treated with sulfuric acid.
Grade : Technical, CP.
Hazard : Powerful oxidizing agent, may explode on contact with reducing agents, may ignite on contact with organic material. A poison. Corrosive to skin. TLV : 0.05 mg/m3 of air. A human carcinogen.
Use : Chromium Plating intermediate, medicine (caustic), process engraving, anodizing, ceramic glazes, colored glass, inks, Tanning, paints, textile mordant, etchant for plastics.

Function in Chrom Plating : Hexavalent Chromium base in Decorative Chrom Plating and Hard Chrom Plating.

Boric Acid

Boric acid (Orthoboric Acid)
CAS : 10043-35-3 (H3BO3)
Properties : Colorless, Odorless, white or scales powder, stable in air. Soluble in boiling water, alcohol, glycerol. Noncombustible
Density : 1.4347 (15C).
Derivation :

- By adding hydrochloric or sulfuric acid to a solution of borax and crystallizing.
- From weak borax brines by extraction with a kerosene solution of chelating agent such as 2-ethyl-1,3-hexanediol or other polyols. Borates are stripped from the chelate by sulfuric acid.
Hazard : Toxic via ingestion, Use only weak solutions. Irritant to skin in dry form.
Grade : Technical 99,9 %

Use : Heat resistant (borosilicate) glass, porcelain enamels, boron chemicals, welding flux, brazing copper, nickel electroplating baths.
Function in Nickel Plating : As buffer in Nickel Solution. Stabillizing pH.

Nickel Sulfate

Nickel Sulfate

CAS : 7786-81-4
Nickel Sulfate Heptahydrate (NiSO4.7H2O)
Appearance : green crystal.
Properties : Soluble in water and alcohol. Loses 6HOH at 103 C
Density : 1.98
Derivation : Action of Sulfuric acid on Nickel.
Grade : Technical, CP, single crystals.
Hazard : Toxic material, TLV (as Nickel) 0.1 mg/m3 of air.
Use : Nickel Catalyst, nickel plating, manufacture of nickel ammonium sulfate, coating, ceramics.
Function in Nickel Plating : as primary nickel salt.

Nickel Chloride

Nickel Chloride
CAS : 7718-54-9
Nickel Chloride Hexahydrate (NiCl2.6H2O)
Appearance : green scales
Properties : Soluble in water, alcohol, and ammonium Hydroxide, nonflammable.
Derivation : Action of Hydochloric Acid on Nickel
Use : Basic chemicals for nickel plating, Reagent Chemicals.
Function in Nickel Plating : Increase Throwing Power in Plating process, but cause increase hardness of coating.

Chromium Plating Chemicals

Basic Chemicals for Decorative Chrom Plating :
- Chromic Acid
- Sulfuric Acid

Aditif Chemicals for Decorative Chrom Plating :
- Catalyst for Decorative chrom Plating

Nickel Plating Chemicals

Nickel Plating Chemicals
Nickel Plating process use basic chemicals with large quantity needed, and aditif chemicals as brightening agent.
Basic Chemicals for Nickel Plating :
- Nickel Sulfate
- Nickel Chloride
- BoricAcid

Aditif Chemicals for Nickel Plating :
- Wetting Agent
- Brightener for Bright Nickel Plating
- Brightener for Semi Bright Nickel Plating