Talc

AGS Talc Product Description

Talc is a very soft clay mineral that is composed of hydrated magnesium silicate. Talc is used in many industries and products, such as paper, cables, pharmaceuticals, cosmetics, and ceramics. . AGS Talc S-series are nodular as opposed to common talc products. Please see the specifications below to pick the right talc product for your industrial needs.

Talc has the following unique properties:

Highly resistant to heat, electricity, and acids

Naturally hydrophobic

The softest mineral in the world

Technical Specifications of AGS Talc Grades

AGS Talc

	Technical Specifications – AGS Talc
Product Name	High-purity and white fine ground talc mineral	AGSTALK S-series				AGSTALK X-series
Product Name	High-purity and white fine ground talc mineral	2STD	15SX	5SX-P	5SX	Premier	3X	5X
Particle size distribution	d50 (Average particle size) max., µm	4.5	4.0	4.1	4.1	5.3	9	12
	d97 (Top-cut) max., µm	28	21	18	18	22	37	49
	< 2µm, %	18%	28%	27%	27%	18%	10%	10%
Whiteness (Elrepho 450X min.)	Whiteness, L (ASTM E-313)	95	90	94	95	97	97	97
	Brightness, Ry (DIN 53163)	88%	80%	86%	89%	91%	91%	91%
	Yellowness (DIN 6167)	4.0	3.3	2.5	2.5	3.0	3.0	3.0
Specific Characteristics	Packing density (ISO 787-11), g/ml	0.5	0.3	0.3	0.3	0.3	0.4	0.5
	Dop absorption (ISO 787-5), g/100g	52	51	50	51	50	50	49
	Oil absorption (ISO 787-5) , g/100g	46	48	46	44	45	48	40
	Moisture (ISO 787-2) max.	0.4%
	pH (ISO 787-9)	9
Mineralogy	Talc, %	99 – 100
	Chloride, %	Trace amounts
	Dolomite, %	< 1
	Quartz, %	< 1
Chemical properties	SiO2, min.	61%
	MgO, max.	31%
	CaO, max.	0.7%
	Fe2O3, max.	0.3%
	Al2O3, max.	0.5%
	Loss on ignition, max.	6.5%
Physical properties	Density (ISO 787-10), g/cm³	2.78
	Mohs hardness	1
	Refractive index	1.57