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,  m |
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 |
