Cobalt-Free Color-Changing Silica Gel for Desiccant and Indicating Desiccant Saturation Degree and Sealing Packaging

Product Description

Properties
The European Union designated cobalt chloride as a Class II carcinogen in 1998,Blue gum containing cobalt chloride has been banned in Europe and the United States and gradually phased out.In order to meet the needs of the market, cobalt free environmental discoloration silica gel was developed.
The product is developed based on blue gum color-changing silica gel,Orange color-changing silica gel prepared from fine porous silica gel impregnated with inorganic salt mixture,It uses new non-toxic compound dyes,Fundamentally eliminate the pollution caused by dye and discoloration agent to the environment.Products with its original technological conditions and good adsorption performance to become a new generation of environmental protection products.

Application
It is mainly used for desiccant and indicating desiccant saturation degree and sealing packaging,The relative humidity of space medium in precision instruments,General packaging and instruments against moisture.

Technical Specifications

Items			Indicators
			Orange to colorless	Orange to blackish-green
Amount of adsorption % ≥		RH50%	20	20
		RH80%	30	30
appearance			Orange or Orange-red	Orange or Orange-red
Loss on heating       ≤%			5	5
Particle size pass rate   % ≥			90	90
Colour	RH50%		A slight yellow color	Dark blue or purplish blue
	RH80%		Colorless or yellowish	blackish-green
Note: Special requirements are subject to agreement

Size:1-3mm,2-4mm, 3-5mm.
Packaging: Bags of 25kg

Notes:(1)Particlesize, packaging, moisture and specifications can be customized

Quality Contral:



 

FAQ:
Q1. Can I have a sample order for silica gel dryer products?
A: Yes, we'd like to send samples free of charge by TNT/FEDEX/DHL. Mixed samples are acceptable.

Q2. What about the lead time?
A:It is 3-5 days for sending samples
    It is usually within 15 days to delivery orders for quantity within 100mt, 

Q3. Do you have any MOQ limit for silica gel order?
A: No.But the less the average cost higher.

Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 working days to arrive.
     It depands on the distance by sea.7-40days.

Q5. How to process an order for silica gel Desiccant Products?
A:
1).let us know your requirements or application.
2).We quote according to your requirements or our suggestions.
3).customer confirms the samples and pay deposit for order.
4).We arrange the production.

Q6. Is it OK to print my logo on packages?
A: Yes. Please inform us before our production and confirm the design firstly based on our sample.

Q7: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less 
than 0.2%.
Secondly,If it happened,we shall arrange to send new products to you and pay for all your lost.

Any question,kindly contact us please!