Imerys NYGLOS® M3 Wollastonite

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Imerys NYGLOS® M3 Wollastonite
Categories:	Ceramic; Oxide; Silicon Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	This grade is recommended for polymer reinforcement. Wollastonite is a naturally occurring white mineral with an acicular (needle-shaped) particle structure. This distinctive particle morphology makes wollastonite an ideal performance mineral for a broad range of industrial and consumer applications, including polymer reinforcement; coatings; construction/architecture reinforcement; enhancing friction stability in discs, lings, and brakes; and metallurgy. .Information provided by NYCO Minerals, subsequently acquired by Imerys.
Key Words:	Calcium Metasilicate, CaSiO₃, CaSiO3
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Physical Properties	Metric	English	Comments

Bulk Density	0.350 g/cc	0.0126 lb/in³	Loose
	0.560 g/cc	0.0202 lb/in³	Tapped
Density	2.90 g/cc	0.105 lb/in³
Brightness	87 %	87 %	G.E. Brightness
Oil Absorption	40 %	40 %
Solubility in Water	0.0095 %	0.0095 %
Moisture Absorption	0.150 %	0.150 %
Particle Size	>= 3.0 µm	>= 3.0 µm	10% smaller than
	6.0 µm	6.0 µm	median; Microtrac
	<= 20 µm	<= 20 µm	90% smaller than
pH	9.9	9.9	10% Slurry
Specific Surface Area	1.9 m²/g	1.9 m²/g	BET
Molecular Weight	116 g/mol	116 g/mol

Mechanical Properties	Metric	English	Comments
Hardness, Mohs	4.5	4.5
Tensile Strength	2700 - 4100 MPa @Diameter 0.00300 - 0.150 mm	392000 - 595000 psi @Diameter 0.000118 - 0.00591 in	Fiber Strength
Modulus of Elasticity	303 - 530 GPa @Diameter 0.00300 - 0.150 mm	43900 - 76900 ksi @Diameter 0.000118 - 0.00591 in	Fiber Modulus

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.30e+13 ohm-cm	1.30e+13 ohm-cm	pure wollastonite
Dielectric Constant	6.8 @Frequency 10000 Hz	6.8 @Frequency 10000 Hz
	6.8 @Frequency 100000 Hz	6.8 @Frequency 100000 Hz
	6.9 @Frequency 1e+6 Hz	6.9 @Frequency 1e+6 Hz
	6.9 @Frequency 1000 Hz	6.9 @Frequency 1000 Hz
Dissipation Factor	0.00152 @Frequency 1000 Hz	0.00152 @Frequency 1000 Hz
	0.0046 @Frequency 10000 Hz	0.0046 @Frequency 10000 Hz
	0.0046 @Frequency 1e+6 Hz	0.0046 @Frequency 1e+6 Hz
	0.0078 @Frequency 100000 Hz	0.0078 @Frequency 100000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	6.50 µm/m-°C	3.61 µin/in-°F
Thermal Conductivity	2.63 - 2.77 W/m-K	18.3 - 19.2 BTU-in/hr-ft²-°F
Melting Point	1410 °C	2570 °F	ASTM D1857
	1540 °C	2800 °F	theoretical

Optical Properties	Metric	English	Comments
Refractive Index	1.63	1.63

Component Elements Properties	Metric	English	Comments
Al2O3	0.30 %	0.30 %
CaO	44.94 %	44.94 %
Fe2O3	0.28 %	0.28 %
K2O	0.23 %	0.23 %
Loss on Ignition(%)	0.47 %	0.47 %
MgO	0.75 %	0.75 %
MnO	0.040 %	0.040 %
SiO2	52.94 %	52.94 %
TiO2	0.050 %	0.050 %

Descriptive Properties
Aspect Ratio (L/D)	5:1
Bulking Value (gal./lbs.)	0.0413
Color	White
Minus 400 U.S. Mesh Screen (%)	99.95
Morphology	Acicular

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CNYCO01 / 1683

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