Talc powder for paint

Talc powder for paint     CAS No. : 14807-96-6
Molecular formula: Mg3 [Si4O10] (OH) 2
Molecular weight: 379.22   Talc is our planet's softest known mineral. All talcs are lamellar, chemically inert, organophilic and water repellent, but no two talcs are the same. Their unique properties bring added performance to a wide range of products and processes.     MAIN SPECIFICATIONS:     Talc Powder Spec:  

Item / Parameter	TC-1C	TC-2C	TC-3C	TC-4C	TC-93	TC-85
Whiteness(%)	93.0±3.0	93.0±3.0	93.0±3.0	93.0±3.0	88.0±3.0	85.0±3.0
Moisture(%)	<0.50	<0.50	<0.50	<0.50	<0.50	<0.50
PH	8.5-10.5	8.5-10.5	8.5-10.5	8.5-10.5	8.5-10.5	8.5-10.5
Absorption(ml/100g)	44	40	40	44	40	40
Size (mesh) Laser diffraction	3000	2500	1500	1250	800	600
Average particle size (μm)	3.5μm	5μm	8μm	13μm	<0.5	<0.5

    Talc Lump Spec:    

Specification	Grade A+	Grade A	Grade B	Grade C
SiO2(%)	≥61.5	≥61.0	≥60.0	≥59.0
MgO(%)	≥31.5	≥31.0	≥30.0	≥30.0
Whiteness(%)	≥95	≥92	≥82	80-90
LOI(%)	6-7	6-7	6-7	6-7

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