Property
In 1998, the EU has confirmed cobaltous chloride as secondary carcinogen, thus blue gel that contains cobaltous chloride has been forbidden and disappears in Europe and America, while our company has developed multicolor silicon gel conforming to requirement of market.
It is spherical or irregular granules and is divided into purple, orange or yellow type, main component is silicon dioxide, color will change conforming to changes of moisture. Besides performance of blue gel, it does not contain cobaltous chloride, toxin and harm.
Purpose
Fit for drying and indicating drying degree or moisture for precise instrument, pharmacy, petrochemical, food, costume, leather, household apparatus and other industrial air, etc.
Applicable Method
Put proper amount of this product into container or packing vessel, then put them into atmosphere that needs drying or humidity indication. It can be used separately or matched with other silicon gel.
After changing color, former color will appear after being heated, proper heating temperature is 100 to 120℃.
Technical Index
| Index |
Index |
| WG-1 |
WG-2 |
WG-3 |
| Quantity of Absorption % |
RH 20% ≥ |
9.0 |
9.0 |
9.0 |
| RH 50% ≥ |
22.0 |
22.0 |
22.0 |
| Grinding Consumption % ≤ |
10.0 |
10.0 |
10.0 |
| Eligible rate of granularity % ≥ |
90.0 |
90.0 |
90.0 |
| Heating loss % ≤ |
2.0 |
2.0 |
2.0 |
| Changes |
RH 20% ≥ |
Orange |
Light yellow |
Kelly |
| RH 35% ≥ |
Light orange |
Light brown-green |
Green-yellow |
| RH 50% ≥ |
Light orange |
Light green |
Light blue |
| Original color |
Purple |
Orange |
Light yellow |
|
