Graphite Rod, Carbon Rod, Graphite Electrode, Carbon Bar, Graphite Cylinder, Carbon Shaft, Graphite Stick, 7782-42-5

GRAPHITE ROD (GRAPHITE ELECTRODE / CARBON ROD)

PRODUCT IDENTIFICATION INFORMATION

CHEMICAL STRUCTURE

    Graphite Rod (C)
    
    Hexagonal Layered Crystal Structure
    
         C   C   C   C
          \ / \ / \ /
           C   C   C
          / \ / \ / \
         C   C   C   C
    
    Hexagonal Layered Structure
    (Layers Connected by Weak van der Waals Bonds)
    Self-Lubricating Property
    High Electrical Conductivity

Molecular Formula: C (Elemental Carbon)
Crystal Structure: Hexagonal (Layered)
Classification: Non-metal; Carbon allotrope

SECTION 1: CHEMICAL IDENTITY AND DEFINITION

SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES

SECTION 3: GRAPHITE TYPES AND GRADES

SECTION 4: CHEMICAL PROPERTIES AND REACTIVITY

SECTION 5: PRODUCTION METHODS

Method 1: Isostatic Pressing (High Performance)

• Process: Petroleum coke + Pitch binder → Mixing → Cold isostatic pressing → Baking (1,000°C) → Graphitization (2,500-3,000°C) → Machining → Graphite rod

• Properties: Fine grain, isotropic, high density, high strength

• Applications: Nuclear, semiconductor, EDM, precision applications

Method 2: Extrusion (Industrial Standard)

• Process: Petroleum coke + Pitch binder → Mixing → Extrusion → Baking (1,000°C) → Graphitization (2,500-3,000°C) → Machining → Graphite rod

• Properties: Medium-coarse grain, anisotropic, economical

• Applications: Aluminum, continuous casting, glass

Method 3: Molding (Hot Pressing)

• Process: Petroleum coke + Pitch binder → Mixing → Hot pressing → Baking (1,000°C) → Graphitization (2,500-3,000°C) → Machining → Graphite rod

• Properties: Fine-medium grain, good mechanical properties

• Applications: Industrial furnaces, general applications

SECTION 6: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION

SECTION 7: MAIN APPLICATION AREAS

SECTION 8: QUALITY SPECIFICATIONS (ISOSTATIC GRAPHITE)

SECTION 9: TOXICOLOGICAL PROFILE

SECTION 10: GHS CLASSIFICATION AND LABELING

GHS Classification (Compliant with CLP and UN GHS):

Note: Graphite is generally considered non-hazardous. However, fine dust may cause mechanical irritation.

Signal Word: No signal word required (non-hazardous) or WARNING (optional)

Hazard Pictograms: GHS07 (optional)

Hazard Statements (H-Codes) - if classified:

NFPA 704 Hazard Classification:

SECTION 11: PRECAUTIONARY STATEMENTS (P-CODES)

SECTION 12: FIRST AID MEASURES

SECTION 13: FIREFIGHTING MEASURES

SECTION 14: STORAGE AND SHELF LIFE

SECTION 15: PACKAGING OPTIONS

SECTION 16: TRANSPORT INFORMATION

SECTION 17: REGULATORY STATUS

SECTION 18: OTHER NAMES AND SYNONYMS

SECTION 19: SUMMARY TABLE

SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

• Non-hazardous material but fine dust may cause respiratory tract irritation. Use appropriate dust control measures.

• Non-combustible (bulk). Powder form may be combustible.

• High temperature resistance: Stable up to 3,000°C in inert atmosphere. Oxidation begins at ~500°C in air.

• Good electrical conductivity: Suitable for electrode and conductor applications.

• Self-lubricating: Low coefficient of friction; can be used as dry lubricant.

• Chemical inertness: Resistant to most chemicals; avoid strong oxidizing agents.

• Incompatibilities: Keep away from strong oxidizing agents, halogens, and oxygen at high temperature.

• Graphitosis: Prolonged inhalation of graphite dust may cause benign pneumoconiosis (graphitosis).

• Hygiene Requirement: Wash hands thoroughly after handling.

BEST PRACTICE RECOMMENDATIONS:

• Electrical & Electrochemical Applications: Use as electrode in electrolysis cells; Arc furnaces; Battery electrodes; Carbon brushes; Electroplating anodes/cathodes; Provides high conductivity and chemical inertness.

• High-Temperature Applications: Use for molten metal stirring; Furnace components; Crucibles; Heating elements; Can be used up to 3,000°C in inert atmosphere.

• Machinery & Mechanical Applications: Use in self-lubricating bearings; Sliding surfaces; Piston rings; Mechanical seals; Low friction and wear resistance.

• Nuclear Applications: Use as nuclear reactor moderator; Neutron shielding; Low neutron capture cross-section.

• Semiconductor & Electronics: Use in semiconductor production; Crystal pulling; LED production; Photovoltaics; Requires high purity.

• EDM (Electrical Discharge Machining): Use in tool and die making; Precision machining; EDM electrodes; Requires fine grain and high density.

• Handling: Use in well-ventilated areas; Avoid dust generation; Wear protective gloves, safety goggles, and appropriate respiratory protection (if dust).

• Personal Protective Equipment: Safety goggles, protective clothing, protective gloves (nitrile, neoprene), NIOSH-approved dust mask (if dust).

• Hygiene: Wash hands thoroughly after handling; Do not eat, drink, or smoke when using.

• Storage: Store in cool, dry, well-ventilated area; Protect from moisture; Keep away from oxidizing agents and halogens.

• Spill Response: Avoid dust generation; Vacuum or sweep; Place in closed containers; Do not allow to enter drains or waterways.

• Disposal: Dispose of in accordance with local, regional, and national regulations; Graphite is recyclable; Recycle where possible.

GRAPHITE GRADE SELECTION GUIDE:

SPECIAL NOTE ON OXIDATION RESISTANCE:

Graphite oxidation resistance depends on temperature:

• In Air: Oxidation begins at ~500°C

• Inert Atmosphere (Argon, Nitrogen): Stable up to 3,000°C

• Vacuum: Stable up to ~2,000°C

• Oxidation Reaction: C + O₂ → CO₂

• Precaution: Use inert atmosphere for high-temperature applications

LEGAL DISCLAIMER:

The information provided in this document is based on our current knowledge and experience and is presented in good faith. However, as all conditions of use are beyond our control, this document does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing suitability for their own applications. For complete safety, storage, handling, transportation, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.

NOTE: CARBON RODS CAN BE MANUFACTURED AND SHIPPED IN CUSTOM SIZES.