325-2000 mesh talc powder/talcum powder
EPTlcum Powder is a distinctive normal mineral generate via verification amp fine grinding. This merchandise may be employed in Paints, Beauty, Paper, Prescription drugs, FerEPTzers and many others.
EPTlc lubricity, fireplace resistance, acid resistance, insulation, substantial melting position, chemical inertness, excellent covering EPT and gentle, excellent gloss, strong adsorption capacity, superb physical and chemical qualities, the crystal framework of talc is a layer, so it is effortless to spEPT into flake craze and EPT lubrication and if the Fe2O3 content is extremely high will decrease its insulation.
The major part of talc is hydrotalcite conXiHu (West Lake) Dis.Hu (West Lake) Dis. magnesium silicate, and the formulation is Mg3 [Si4O10] (OH) two. EPTlc beEPTs to monoclinic system. The crystal is untrue, 6 sides or diamond flakes, sometimes. Generally dense clumps of leaves, rays, and fibrous aggregates. Colorless or white, but with a little quantity of impurities and has ligEPT green, ligEPT yellow, ligEPT brown or pale purple the cleavage airplane is Pearl luster. Hardness one, specific gravity two.seven ~ 2.eight.
Actual physical Investigation:
Coloration is snow white
Luster is uninteresting to pearly or greasy
Transparency crystals are translucent and masses are opaque
Crystal method is mono-clinic 2/m
Hardness is one.
Specific Gravity is two.seven – two.8
PLASTIC Grade TALC POWEPT
|Specialized specification||Specific grade||First quality||Up to stXiHu (West Lake) Dis.Hu (West Lake) Dis.rd|
|Whiteness% ge||ninety five||90||88|
|SiO2 % ge||sixty one||fifty eight||55|
|CaO% le||.forty five||1.00||1.fifty|
|Fe2O3 % le||.thirty||.40||.fifty|
|Al2O3 % le||.twenty||.thirty||.thirty|
|L.O.I. % le||six.00||eight.00||ten.00|
|Inspection item||StXiHu (West Lake) Dis.Hu (West Lake) Dis.rd provisions||Examination outcomes|
|Character||White or white, wonderful, no sand, powder, hand contact with soapy, micro gas, mild.
Insoluble in h2o, dilute hydrochloric acid, dilute sodium hydroXiHu (West Lake) Dis.de resolution
|Comply with the provisions|
|Recognize(one)||Should comply with the provisions||Comply with the provisions|
|Recognize(two)||Ought to comply with the provisions||Comply with the provisions|
|Whiteness||Superior merchandise (90 medicinal) ge90%
(86 medicinal) ge85%
|Fineness||45 mum Evaluation Screening move price ge98.%||ninety eight.31%|
|Soluble in water||le0.one%||.ninety four%|
|Acid soluble make a difference||le2.00%||one.80%|
|Ferric salt||Blue can not be displayed in a well timed method||Not well timed show blue|
|Decline on ignition||le5.%(800 ordmC)||2.35%|
|Large steel||le40 mg/kg||le40 mg/kg|
|Arsenic salt||le2 mg/kg||le2mg/kg|
|Bacterial count||le500 cfu/g||thirty cfu/g|
|Molds and yeasts||le100 cfu/g||ten cfu/g|
|Escherichia coli||Not detectable||Not detectable|