cobalt free color change humidity indicator card with free samples
USD $0.001 - $0.08 /Bag
Min.Order:10000 Bags
Rushan Wufeng Silica Gel Co., Ltd.
cobalt free color change humidity indicator card with free samples
Humidity Indicating Cards will be changed when it absorbing
Silica Gel Desiccants are basically miniaturized forms of adsorbents to protect small enclosures. They are primarily used in the pharmaceutical, diagnostic, electronics, food, and optical markets
The special packaging films (GDTII, Tyvek, or a clear plastic) used in the manufacture of the desiccant packets provide extremely quick adsorption rates. Packets are available in several different desiccant fills, configurations, and sizes (ranging from 1/2 gram to 10 grams )
Physical Character:
ST. | Item | Index |
1 | Abrasion Rate | ≤4 |
2 | Bulk Density | ≥750g/l |
3 | Specufic Reaistance | ≥3000 |
4 | PH Value | 5.6-8 |
5 | Color | transparebcy Crystal |
6 | Hydroscopicity | RH=20% ≥10% RH=40% ≥20% RH=80% ≥34% |
7 | Environment Conservation | Pb≤2ppm Cd≤2ppm Hg≤2ppm CrVi≤2ppm PBBs≤2ppm PBDEs≤2ppm (ppm=mg/k) |
Storage:
Keep dry and sealed.
Specification:
1) Color: Change color: pink or green as increase moisture
2) Security: high and no harm or poison for any living being, of course non-toxic and tasteless;
3) Absorption: excellent, as high as 38%
4) Other usage: as indicator for moisture change; check desiccant's effective.
5) It looks like translucence blue globular.
6) Difference with orange silica gel: this silica gel is not DMF free but orange silica gel is DMF free.
7) We can pack little bag for you.
Why Choose Us
1. All of our products are Eco-friendly, MSDS&SGS Approval.
2.We are a manufacture which have 15 years experience in this area,
High productivity, fast delivery.
3. OEM& ODM acceptable
4. Free samples can be provided for test, welcome trial order.