Section 1 - Product Name Product Name: Sintered Neodymium Iron Boron (NdFeB) Permanent Magnet
Section 2 - Hazardous Ingredients Chemical Name: Sintered Neodymium Iron Boron (NdFeB) Permanent Magnet
Material/Component(s):
Material or Component Weight % CAS No. ACGUH TLV (mg/m^3) Notes
Neodymium
33%
7440-00-8
Not Established
Iron
65%
7439-89-6
10 (oxide)
Boron
1.3%
7440-42-8
10
test
Nickel
0.01-0.4%
7440-02-0
1 (dust) / 0.1 (fume)
Plating
Copper
0.01-0.2%
7440-50-8
1 (dust) / 0.2 (fume)
Plating
Dysprosium
0-4%
7429-91-6
Not established
May be used in high-temp grades
Cobalt
0-5%
7440-48-4
0.02
May be used in high-temp grades
Praseodymium
0-5%
74410-10-1
Not Established
N/A
Section 3 - Physical Characteristics Boiling Point: N/A
Vapor Pressure: (mm Hg.) N/A
Vapor Density: (air = 1) N/A
Specific Gravity: 7.1 - 7.6
Melting Point: Above 1000 Degrees C (1832 Degrees F)
Evaporation Rate: N/A
Odor: No Odor
Solubility in Water: Not Soluble
Appearance: Silver-Gray dark metallic
Section 4 - Fire and Explosion Hazard Data Flash Point: N/A
FLAMMABLE LIMITS: N/A
LEL: N/A
UEL: N/A
Extinguishing Media: Dry Chemicals without Oxygen Compounds or Sand
Special Fire Fighting Procedures: Do not use Halon agents or water on smoldering, burning powder.
Unusual Fire and Explosion Hazards(s): Dry powders of neodymium magnets will oxidize, smolder, and burn rapidly in the presences of air or oxygen. Maintain powders in water slurry or in inert atmospheres of nitrogen or argon to prevent spontaneous combustion. Magnets may spark on impact. Handle carefully in explosive atmospheres.
Section 5 - Reactivity Data Stability: Stable
Conditions to Avoid: Avoid exposure of powdered magnet material to air, oxygen or halogenated hydrocarbons, and to elevated temperatures above 150 Degrees Celsius.
Incompatibility (Materials to Avoid): Fine powders are incompatible with air, oxygen, halogentated hydrocarbons with strong oxidizers
Section 6 - Health Hazard Data Health Hazards (Acute & Chronic): Prolonged skin contact may cause irritation or allergenic dermatitis.
Emergency and First Aid Procedures:
Procedure For Procedure
Skin
Brush off powders and wash well with soap and water.
Eyes
Flush with water until clear.
Section 7 - Precautions for Safe Handling and Use Spill Procedure: Sweep up dust and store in water slurry or sealed containers utilizing inert atmosphere such as argon or nitrogen to prevent spontaneous combustion.
Waste Disposal Method: Dispose of in accordance with federal, state and local regulations.
Section 8 Control Measures Respiratory Protection: Use NIOSH approved respirator when TLV is exceeded.
Eye Protection: Use safety glasses or goggles when handling magnets.
Skin Protection: Potective gloves are recommended when handling magnetized part or parts which may have sharp edges.
Ventilation: Use wet machining/grinding processes and adequate local ventilation to reduce dust levels
Work / Hygienic Practices: Use personal protection equipment when required. Use good personal hygiene practices. Keep magnetized parts away from mechanical/electrical instruments which may be damaged by high magnetic fields.
WARNING: RARE EARTH MAGNETS ARE EXTREMELY POWERFUL!
They have very strong magnetic forces which make them attract to other magnets and other ferromagnetic materials such as iron or steel.
HANDLE WITH EXTREME CAUTION!
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