Blue silica gel cobalt free NEW
| Price | $150 |
| Package | 1kg |
| Min. Order: | 1kg |
| Supply Ability: | 20tons |
| Update Time: | 2025-11-18 |
Product Details
| Product Name: Blue silica gel cobalt free | CAS No.: 7631-86-9 |
| Min. Order: 1kg | Purity: 99% |
| Supply Ability: 20tons | Release date: 2025/11/18 |
| Appearance: particles | Extract Source: Mint |
| Shelf Life: 2 Years | Origin: China |
| Package: 25kg/Drums or Carton, 1kg or Less/Bag | Color: blue |
Product Description:
Blue silica gel cobalt free is color-changing silica gel and blue silica gel, not content Cobalt. it has the appearance of the blue or light blue glass-like particles, according to the shape of particles It can be divided into spherical ones and granular ones. Meanwhile, It has a property of turning rose red from blue after absorption.
Beads 1-2mm,1-3mm,2-4mm,2-5mm,3-5mm,4-6mm or customized.

Specification
| ITEM | Standard | |
| Adsorption capacity % | RH=20% | 8.0min |
| RH=35% | 13.0min | |
| RH=50% | 20.0min | |
| RH=90% | ---- | |
| Rattler loss% | 10.0max | |
| Qualified size ratio % | 96min | |
| Loss on heating % | 2.0max | |
| color | RH=20% | Blue or light blue |
| RH=35% | purple or purplish red | |
| RH=90% | rose red | |
Applications
1. Mainly used for moisture absorption and rust proofing when instruments and equipment are placed in obturation conditions, at the same time, according to their own color turning red from blue after the moisture absorption it can indicates ambient humidity directly.
2. It being used with ordinary silica gel desiccant, we can get the desiccant moisture level and judge the relative ambient humidity.
3. Desiccant silica gel used for packaging, it is widely used in precise instruments, leather, shoes, clothing, food, medicine and household appliances, etc.
Packages & Delivery
packed in 25 kg paper-plastic composite bags or woven bags. It is transported in the form of pallets. Each pallet has 40 bags and a net weight of 1000 kg, Extended packaging on the outside.
Storage: Storein cool & dry place. Do not freeze. Keep away from strong light and heat.
Shelf life: two years when properly stored.
Shipping method: International express by air, by sea, UPS and EMS service.
| Cargo weight | Packing | Shipping method | Lead-time |
| 1-50kg | Below 5kg Use Foil bag; 5-25kg use two layer PP bag,then into master carton or cardboard drum | International express (Fedex/ DHL/UPS) | 1~3 days after payment |
| 100-200kg | 25kg/drum,use two layer PP bag,then into cardboard drum | Air shipping Sea Shipping | 5~7 days after payment |
| Over 500kg | 25kg/drum,use two layer PP bag,then into cardboard drum | Sea shipping | 7~10 days after payment |
FAQ
Q1: How can I get a sample?
A: Free samples is available. You only pay shipping cost.
Q2: Which payment terms do you accept?
A: Payment can be done by T/T, Western Union,Money Gram,etc.
Q3: How to confirm the Product Quality before placing orders?
A: Every product is with professional COA. Please be sure about the quality.If any doubt, sample is available to you to be tested before large quantity order.
Q4: When will my order be shipped?
A: Within 3 working days after the payment.
Q5: How do you treat quality complaint?
First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us,we will
send you free goods for replacement or refund your loss.
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