Industrial Talcum Powder

The composition of talc powder depends on whether you're referring to pure talc mineral or a commercial talcum powder.

1. Pure Talc (Mineral) Composition

• Chemical Name: Hydrated Magnesium Silicate
• Chemical Formula: MgSiO(OH)
• CAS No.: 14807-96-6

Typical composition:

2. Commercial Talcum Powder

Commercial talcum powder may contain:

• Talc (typically 9099%)
• Fragrance
• Zinc Stearate (to improve slip)
• Preservatives (if required)
• Colorants (in some cosmetic products)

Typical Physical Properties

• Appearance: White to off-white fine powder
• Odor: Odorless (unless fragranced)
• pH: Approximately 79 (10% slurry)
• Specific Gravity: 2.72.8
• Mohs Hardness: 1 (softest natural mineral)
• Moisture: <0.5%

Industrial Grade Talc

Industrial talc used in paints, plastics, rubber, ceramics, paper, and detergents generally has:

• SiO: 5565%
• MgO: 2835%
• CaO: 03%
• FeO: 02%
• AlO: 03%
• Loss on Ignition (LOI): 47%

If you need the composition for export documentation, SDS/MSDS, cosmetics, pharmaceuticals, or industrial manufacturing, I can provide the specification in the appropriate format.