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Wollastonite

Wollastonite

CAS Number: 13983-17-0

Molecular Formula: CaO3Si

About Wollastonite

Calcium Inosilicate (CAS 13983-17-0) is increasingly leveraged by high purity fine chemicals manufacturers across the Midwest and Southern United States to enhance the mechanical and thermal stability of advanced polymer composites and architectural coatings, serving as a critical reinforcing filler that matches the pe...

Wollastonite Specifications

CAS Number
13983-17-0
Molecular Formula
CaO3Si
Molecular Weight
118.18
IUPAC Name
calcium dioxido(oxo)silane
Canonical SMILES
[O-][Si](=O)[O-].[Ca+2]
InChI Key
OYACROKNLOSFPA-UHFFFAOYSA-N
InChI
InChI=1S/Ca.O3Si/c;1-4(2)3/q+2;-2
EINECS Number
EINECS 233-250-6 / EINECS 237-772-5
HSN No
25309050
Molecular Weight
118.18
Melting Point (Experimental)
1190 °C
Density (Experimental)
2.900 g/cm³
Hazard Classes and Categories
Eye Irrit. 2 (12.3%) & STOT SE 3 (12.3%)
GHS Hazard Statements
H319 (12.3%): Causes serious eye irritation
Precautionary Statement Codes
P101+102+103, P260, P264, P271, P281, P304+P340+P312, and P305+P351+P338 Eye Irrit. 2B (100%)

Ceramics Industry

A reinforcing agent and natural flux used to reduce firing temperatures, minimize shrinkage, and improve the mechanical strength of tiles and sanitaryware

Plastics and Rubber Industry

A functional filler and reinforcement used to enhance tensile strength, dimensional stability, and heat resistance in automotive parts and consumer goods

Paints and Coatings Industry

An additive used to improve durability, crack resistance, and anti-corrosion properties while providing gloss control and mechanical reinforcement

Metallurgy

A flux and slag conditioner used in the continuous casting of steel to protect molten metal surfaces and improve welding processes

Agriculture

A long-term soil amendment and conditioner that releases silicon and calcium to strengthen plant structures and stabilize soil pH levels

Construction Industry

A lightweight reinforcing filler used in the production of fire-resistant insulating boards, cement products, and as an asbestos substitute

Wollastonite FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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