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TALMAG-PR-2
 
Natural mineral powder, white, odorless and tasteless. Without chemicals, insoluble and inert.

PRODUCT DESCRIPTION
The structural formula of the mineral pure talc is Mg3(Si2O5)2(OH)2 or 3MgO.4SiO2.H2O, corresponding to the theoretical chemical composition of MgO =31.7%, SiO2 = 63.5% e H2O = 4.8%.

MAIN APPLICATIONS Industrial talc for use in plastic and paint.


CHEMICAL PROPERTIES (%)

SiO2 MgO Al2O3 Fe2O3 CaO MnO TiO2
58.0 30.0 1.3 0.3 0.05 0.03 0.03
≥ 56.0 ≥ 29.0 ≤ 1.5 ≤ 0.5 ≤ 0.1 ≤ 0.05 ≤ 0.05



PHYSICAL PROPERTIES



  Specification Unit
Whiteness FMY, Elrepho 200, standard 100% = MgO P.A. ≥ 90.0 (%)
Loose density 0.35 / 0.48 (g/cm³)
Tapped density 0.90 / 1.05 (g/cm³)
Humidity ≤ 0.50 (%)
Loss on ignition 1000° C x 1h 4.75 / 8.00 (%)
Surface area BET ≥ 1.5 (m2/g)
Residue on 200# (75Xm) ≤ 2.0 (%)
pH (Europe Pharmacopeia) ≤ 9.0  
Absorption linseed oil 35.0 / 50.0 (g/100g)
Sedigraph D98 ≤ 50.0 (Xm)
Sedigraph D75 ≤ 25.0 (Xm)
Sedigraph D50 ≤ 17.0 (Xm)
Sedigraph D25 ≤ 10.0 (Xm)
Sedigraph D10 ≤ 6.0 (Xm)


SPECIFIC PROPERTIES

 


 
Description
Refraction index 1.588
Asbestos Absent
Quantitative mineralogical analyzes Talc, Quartz, Magnesite, Chlorite
Fe soluble in H2O Absent


 NOTE

1. The tests are conducted in accordance with ABNT, ASTM, EN, DIN standards and internal procedures.
2. For additional information concerning security it is recommended to consult the Material Safety Data Sheet – MSDS.
3. Chemical analysis were conducted according to Magnesita’s internal procedure using calcined basis.
4. Chemical analysis and special tests are according to ISO 9001.
5. Technical data were obtained from laboratory tests on samples of this brand taken from production.
6. Typical values were statistically calculated according to the brand database.
7. The information on this sheet may change without previous communication. Once the sales order is confirmed it is recommended to check if this information sheet needs updates.
8. Whiteness test, Loss on ignition, Residue on 200# and Humidity are performed on all the lots. The others are guarantees and frequency of analysis is annual.
9. Shelf life of 60 months if they kept the original characteristics of packaging and stored in a clean and free humidity.


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