ELECTROPLATING CHEMICALS

Zinc Oxide

2009-05-17T08:40:00.000-07:00

Zinc Oxide

(Chinese white, zinc white, flowers of zinc)

CAS 1314-13-2 ; EINECS 215-222-5 ; ZnO ; inorganic oxide

Appearance : Coarse white or grayish powder

Properties :

- Odorless

- Bitter taste

- Soluble in water and alcohol

- Noncombustible

- Absorbs carbon dioxide from the air

- Greatest UV absorption of all commercial pigments

- Density : 5.47

- Melting Point : 1975^oC

Derivation :

- Oxidation of vaporized pure zinc.

- Roasting of zinc oxide ore with coal and subsequent oxidation with air.

- Oxidation of vapor-fractionated die casting.

Grade : Lead free, green seal, red seal, white seal (according to fineness), leaded (white lead sulfate) ; USP ;single crystals.

Hazard : Zinc oxide fume is harmfull by inhalation. Zinc oxide powder reacts violently with chlorinated rubber at 215^oC. TLV (Fume) : 5 mg/m³ in air.

Use : UV absorber, accelerator activator, pigment in white paints, cosmetics, driers, dental cements, mold inhibitor in paints, in manufacture of opaque glass, enamels, tires, printing inks, porcelains, reagent in analytical chemistry, as flame retardant, dietary supplement, photoconductor in office copying machines and in color photography, piezoelectric devices.

Red Seal

White Seal

Copper Sulfate

2009-05-17T07:10:00.000-07:00

Copper Sulfate

(Copper Sulfate pentahydrate, cupric sulfate, Blue vitriol, blue stone, blue copperas)

CAS 7758-99-8 ; EINECS 231-847-6 ; CuSO₄.5H₂O

Appearance : Blue crystals or blue or blue crystalline granules or powder, white when dehydrated

Properties :

- Slowly efflorescing in water

- Nauseous metallic taste

- Soluble in water and methanol

- Slightly soluble in alcohol and glycerol

- Density : 2.284

Derivation :

Action of dilute sulfuric acid on copper or copper oxide (often as oxide ores) in large quantities with evaporation and crystallization

Grade : Technical, Electroplating, CP, NF, also sold as monohydrate. Available as crystals or powder.

Hazard: toxic by ingestion, strong irritant.

Use : Agriculture (Soil additive, pesticides, Bordeaux mixture), feed additive, germicides, textile mordant, electroplated coating, wood preservative, process engraving and lithography, synthetic rubber, pigments. The anhydrous salt is used as dehydrating agent.

Copper Sulfate Technical Grade

Copper Sulfate Electroplating Grade

Chromic Acid

2009-03-28T08:39:00.001-07:00

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

2009-03-28T07:39:00.000-07:00

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

2009-03-24T06:46:00.000-07:00

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

2009-03-21T07:03:00.000-07:00

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

2009-03-18T06:51:00.001-07:00

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

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

Nickel Plating Chemicals

2009-03-18T06:35:00.000-07:00

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