Titanium Dioxide
In order to satisfy requirements of different customers, we can provide internally piloting index of distribution of sizes , specific surface area, dispersancy, chromatic aberratio, iron content, microelement etc. Packed in bag with net weight of 25kg, or additionally with a plastic-weaved, paper plastic or paper bag. There are two package methods for them,sewed package and poured package for the customers' requests.
Quality standard
The standard for the products sold in domestic market is GB1706-93, while ISO787 or GB1706-93 is for the products sold in abroad market.
A: GB1706-93 standard for ferrous sulphate
Items |
Index | ||
Excellent product |
First-grade product |
Qualified product | |
Content of
TiO2, %(m/m) |
98.0 | ||
Color(compared with standard sample) |
Approximate |
No worse than |
No better than |
Eleminating color power(compared with standard
sample) |
100 |
100 |
90 |
105oC volatile
component,%(m/m) |
0.50 | ||
After
preprocess under 23+/-2C and relative humidity (50+/-5)% for
24 hours, volatile component at 105oC,%(m/m) |
0.50 | ||
Soluble
substance in water, %(m/m)
|
0.4 |
0.5 |
0.6 |
PH value
of suspended substance in water
|
6.5-8.0 |
6.5-8.0 |
6.0-8.5 |
Oil
absorption, (g/100g) |
22 |
26 |
28 |
45um residue on sieve, %(m/m) |
0.05 |
0.10 |
0.30 |
Resistance
value of water liquid extract, |
30 |
20 |
16 |
Note: Excellent products sample is fixed similar products, samples of first-grade and qualified products are the samples for chosen.
B: ISO787 standard
Items |
Type A |
Type R | |||
A1 |
A2 |
R2 |
R2 |
R3 | |
Content of TiO2, %, minimum |
98 |
92 |
97 |
90 |
80 |
|
Approximate to sample specified | ||||
Eleminating color power |
Similar to sample specified | ||||
105oC volatile component, %,maximum |
0.5 |
0.8 |
0.5 |
Specified | |
After
preprocess under 23+/-2C and relative humidity (50+/-5)% for
24 hours, volatile component at 105oC,%(m/m) |
0.5 |
0.8 |
0.5 |
1.5 |
2.5 |
Soluble substance in water,%(maximum) |
0.6 |
0.5 |
0.6 |
0.5 |
0.7 |
PH value of suspended substance in water |
Similar to sample specified | ||||
Oil absorption |
Similar to sample specifie | ||||
45µm residue on sieve |
0.10 |
0.10 |
01.0 |
0.10 |
0.10 |
Resistance value of water liquid extract |
/ |
Similar to sample specified |
/ |
Similar to sample specified |
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