Jiangsu GPRO Group is a private company with over 10 subsidiaries, located in Nanjing, China. Our new production lines for 70,000t/a titanium dioxide (both rutile and anatase), 150,000t/a PVC have been put into operation with good quality (parameters as below), and our plastic seats has been used in Beijing 2008 Olympic Games Main Stadium "Bird's Nest". NR950 Rutile Titanium Dioxide
Item Q/3201NTH03-2006
1st Grade Test results on 08.10.28
1 TiO2,% (m/m) ≥ 90.0 93.0
2 Color (L*) ≥ 95.0 96.0
3 Tint reducing power (as compared with reference standard) ≥ 100 111
4 Volatile at 105°C % ≤ 1.0 0.2
5 Volatile at 105°C after 24h stay at (23±2) °C/RH (50±5) %,% ≤ 1.5 1.5
6 Water soluble substances,% ≤ 0.3 0.2
7 pH value of aqueous suspension 6.5-8.0 7.5
8 Oil absorption,g/100g ≤ 23 16
9 Residue on sieve 45μm,% ≤ 0.08 0.05
10 Resistance of aqueous extract, Ωm ≥ 50 69
11 Rutile content,% ≥ 98 99
NA100 Anatase Titanium Dioxide
Item Method Standard: Q/3201NTH03-2006
1st Grade Test results on 08.12.01
1 TiO2,% (m/m) ≥ 98.0 98.2
2 Color (L*) ≥ 95.0 95.3
3 Tint reducing power (as compared with reference standard) ≥ 100 105
4 Volatile at 105°C % (m/m) ≤ 0.5 0.5
5 Volatile at 105°C after 24h stay at (23±2) °C/RH (50±5) %,% (m/m) ≤ 0.5 0.5
6 Water soluble substances,% (m/m) ≤ 0.5 0.2
7 pH value of aqueous suspension 6.5-8.0 7.9
8 Oil absorption,g/100g ≤ 26 20
9 Residue on sieve 45μm,% (m/m) ≤ 0.08 0.05
10 Resistance of aqueous extract, Ωm ≥ 20 23
11 Fe2O3, μg/k ≤ 100 100
PVC RESIN SG-5
Number Item standard grade
1 Mucosity (ml/g) Or K value 118-107 (68-66) 2 Impurity number (Number<=) 30
3 Volatile content%<= 0.4
4 Apparent densityg/ml>= 0.45
5 Remain (testing sieve) % 0.25mm sieve<= 8.0
0.063mm sieve>= 85
6 Number of grain piece (number/400cm2<=) 40
7 100g resin plasticizerabsorbency (g>=) 19
8 White degree (160℃After 10min.) %>= 75
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