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Brass Anode, Yellow Anode, 7440-50-8, 7440-66-6

Brass Anode, Yellow Anode, 7440-50-8, 7440-66-6

BRASS (YELLOW) ANODE

1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

Parameter Description
Product Name Brass (Yellow) Anode
Chemical Composition Copper (Cu) + Zinc (Zn) alloy
CAS Number (Copper) 7440-50-8
CAS Number (Zinc) 7440-66-6
EC Number (Copper) 231-159-6
EC Number (Zinc) 231-175-3
Chemical Class Copper-zinc alloy (brass)
Appearance Yellowish metallic lustrous solid
Odor Odorless
Density 8.4 – 8.7 g/cm³ (depending on alloy ratio)
Melting Point 900 – 940 °C
Electrical Conductivity Lower than copper, but adequate
Mechanical Properties High strength, good machinability

CHEMICAL STRUCTURE AND DESCRIPTION:

Brass is an alloy of copper and zinc. It combines the ductility of copper with the hardness of zinc. The yellow color varies depending on the zinc content; higher zinc content gives a lighter yellow color. It has a face-centered cubic (FCC) crystal structure. It offers good mechanical properties, corrosion resistance, and machinability. It is widely used as an anode in electrolytic plating processes, in decorative plating applications, in the electrical and electronics industry, in corrosion-resistant surface treatments, and in jewelry and decorative items production.

Structural Features:

  • Copper-zinc alloy

  • Face-centered cubic (FCC) crystal structure

  • Yellowish color

  • Good mechanical properties

  • Corrosion resistance

  • Good machinability

2. BRASS ALLOY TYPES AND COMPOSITIONS

Alloy Type Cu (%) Zn (%) Application
Yellow Brass 60-70 30-40 General anode applications
Silver Brass 65-68 32-35 Decorative plating
Red Brass 80-85 15-20 High corrosion resistance
Special Alloys Variable Variable Custom upon request

3. PHYSICAL AND CHEMICAL PROPERTIES

Property Value
Alloy Type Yellow Brass (Cu-Zn)
Copper Content 60 – 70%
Zinc Content 30 – 40%
Appearance Yellowish metallic lustrous
Density 8.4 – 8.7 g/cm³
Melting Point 900 – 940 °C
Electrical Conductivity 28-30% IACS (relative to copper)
Thermal Conductivity 115-120 W/(m·K)
Hardness (Brinell) 80-100 HB
Tensile Strength 300-400 MPa
Elongation 40-60%
Corrosion Resistance Good

4. APPLICATIONS AND INDUSTRIAL USES

Sector Application
Electroplating Anode in electrolytic plating processes
Decorative Plating Decorative plating applications
Electrical / Electronics Electrical and electronics industry
Surface Treatment Corrosion-resistant surface treatments
Jewelry Jewelry and decorative items production
Automotive Automotive parts
Construction Architectural applications

5. SPECIFICATIONS (TYPICAL)

Parameter Specification
Copper Content (Cu) 60 – 70%
Zinc Content (Zn) 30 – 40%
Appearance Yellowish metallic lustrous
Density 8.4 – 8.7 g/cm³
Melting Point 900 – 940 °C
Form Sheet, rod, custom upon request
Dimensions Customizable upon request
Lead (Pb) ≤ 0.05%
Iron (Fe) ≤ 0.05%
Tin (Sn) ≤ 0.05%
Aluminum (Al) ≤ 0.01%

6. HANDLING AND STORAGE

Parameter Information
Storage Conditions Dry, clean, moisture-free environment
Storage Temperature Room temperature
Keep Away From Strong acids, moisture, oxidizers
Shelf Life Unlimited (under proper storage)
Packaging Sheet, rod, custom upon request

Handling Notes:

  • Maintain surface cleanliness

  • Use in well-ventilated areas

  • Avoid contact with acids

  • Surface oxidation may occur in humid environments

  • Protect from mechanical damage

7. SAFETY AND TOXICOLOGY

Parameter Value
GHS Classification Not classified (not hazardous)
Signal Word None
Toxicity Non-toxic in solid form
Dust Inhalation Dust may be harmful if inhaled
Exposure Routes Inhalation (dust), skin contact
Symptoms Respiratory tract irritation
Carcinogenicity Not classified
Personal Protection Gloves, safety goggles, dust mask

SPECIAL WARNINGS:

  • Brass dust inhalation may cause respiratory tract irritation

  • Pay attention to dust formation during processing (cutting, grinding)

  • Adequate ventilation must be provided

  • Welding or melting operations may produce metal fumes

8. FIRST AID MEASURES

Exposure Route Action
Inhalation Move to fresh air. If breathing difficulty occurs, administer oxygen. Seek medical attention.
Skin Contact Wash with plenty of water and soap.
Eye Contact Rinse with plenty of water for at least 15 minutes. Seek medical attention.
Ingestion Rinse mouth with water. Drink plenty of water. Seek medical attention.

9. ENVIRONMENTAL INFORMATION

Parameter Information
Ecotoxicity May be toxic to aquatic organisms
Bioaccumulation Copper and zinc compounds may accumulate in the environment
Environmental Impact May be harmful if released into water bodies
Waste Management Brass-containing waste should be recycled
Recycling Highly recyclable

10. TRANSPORT INFORMATION

Parameter Information
UN Number Not classified as dangerous for transport
Hazard Class Not classified
Packing Group Not applicable
Proper Shipping Name Brass Anode
Marine Pollutant No
ADR/RID Label None

11. REGULATORY INFORMATION

Region Status
EU REACH registered
Turkey (KKDİK) Mandatory compliance; registration required
USA (TSCA) Listed
Customs Tariff Code 7407.21.10

12. SUMMARY AND CRITICAL WARNINGS

SUMMARY:

Brass Anode is a yellow-colored anode material produced from a copper (60-70%) and zinc (30-40%) alloy. It has a density of 8.4-8.7 g/cm³ and a melting point of 900-940 °C. It offers good mechanical properties, corrosion resistance, and machinability.

Its most important applications include use as an anode in electrolytic plating processes, in decorative plating applications, in the electrical and electronics industry, for corrosion-resistant surface treatments, and in jewelry and decorative items production.

Non-toxic in solid form, but brass dust may be harmful if inhaled. Storage should be in dry, clean, moisture-free environments.

Key Properties:

Property Value
Composition Cu (60-70%) + Zn (30-40%)
Appearance Yellowish metallic
Density 8.4 – 8.7 g/cm³
Melting Point 900 – 940 °C
Electrical Conductivity 28-30% IACS
Hardness (Brinell) 80-100 HB
Form Sheet, rod

CRITICAL WARNINGS:

  1. Corrosion Resistance: Brass has good corrosion resistance. However, it is sensitive to ammonia and ammonium salts (stress corrosion cracking).

  2. Decorative Plating: Preferred in decorative plating applications due to its yellow color and bright surface.

  3. Dust Inhalation: Brass dust inhalation may cause respiratory tract irritation. Avoid dust formation.

  4. Alloy Ratio: The copper-zinc ratio affects anode performance and plating quality. Proper alloy selection is important.

  5. Storage: Surface oxidation may occur in humid environments. Store in dry conditions.

  6. Customs Tariff Code: 7407.21.10

Important Disclaimer: This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on available data and is believed to be accurate. However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. All local, national, and international regulations must be followed when working with Brass Anodes.

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