Seaforth Mineral Wollastonite

Wollastonite is a calcium inosilicate mineral (CaSiO₃) with a theoretical makeup of approximately 48% calcium oxide and 52% silicon dioxide. Wollastonite is usually white in color. It may contain small amounts of iron, magnesium, and manganese which can give it a gray, red, or brown tint. Wollastonite is an industrially important mineral. It is well known for its good fluorescence. It also has low moisture and absorption properties.

Chemical Name: Calcium Metasilicate

Functions: Filler

CAS Number: 13983-17-0

Chemical Family: Silicates

Synonyms: Monocalcium Silicate

Safety Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Base Chemicals Functions
CAS No.
13983-17-0
EC No.
237-772-5

Features & Benefits

Base Chemicals Features

Applications & Uses

Industrial Additives End Use
Uses

Wollastonite is used for many different industrial purposes, including the production of: 

  • Plastics
  • Heat-resistant refractory ceramics
  • Metallurgy
  • Wood composites
  • Adhesives
  • Filler in paint, paper and other products
  • Friction products such as brake pads

Properties

Appearance
White mineral powder
Odor
Odorless
Soluble in
Water (Under 0.01 g/100cc)
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Melting Point1540.0°C
Density2.9g/ml
pH (Aqueous)9.9

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Safety & Health

First Aid Measures
  • Inhalation: Remove to fresh air, drink water to clear throat and blow nose to evacuate dust. If coughing and irritation develop, call a physician.
  • Eye Contact: Flush with large amounts of water for at least 15 minutes until irritation stops. If irritation persists see a physician.
  • Skin Contact: Rinse with water, and then gently wash skin with soap and water, if irritation persists see a physician.
  • Ingestion: Possibility of irritation, silicosis.

Storage & Handling

Storage & Handling Information
  • Storage Requirements:  Store in dry area in original shipping container until used.
  • Special Sensitivity or Incompatibility:  Avoid contact with strong acids.
  • Handling Precautions: Use proper respiratory protection if airborne dust level exceeds PEL/TLV