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EC number: 270-210-7
CAS number: 68412-79-3
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77996.
Zirconium iron pink zircon (CAS 68412-79-3) is an inorganic, brick red,
- Melting point > 1000 °C
- relative density: 4.74.
- Particle size distribution: d10 = 1.3 µm, d50 = 2.5 µm, d90 = 4.7 µm
total: 13.3 mg/g
MMAD1= 4.99 µm, GSD1= 1.37
MMAD2 = 10.25 µm, GSD2= 5.80
Fractional deposition in human respiratory tract: Head (ET): 66.7 %,
Tracheobronchial (TB): 2.0 %, Pulmonary (PU): 5.9 %
- The transformation/dissolution
Full test 7 days at 100 mg/L and pH 6: < LOD (0.5) µg Fe and Zr/L
Full test 7 days at 100 mg/L and pH 8: 2.4 µg Fe/L and 2.17 µg Zr/L
Full test 28 days at 1 mg/L and pH 8: < LOD (0.5) µg Fe and Zr/L
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