DESCRIPITION
Δ A-type zinc sulfide is white to off-white powder.

Δ Relative density 4.087. Melting point 1700 ºC. Thermal conductivity 25.1w/(m?K), thermal expansion coefficient (volume): 100°C, 0.163; 200°C, 0.395; 400°C, 0.919; 800°C, 2.146. Beta-vulcanized Chemicalbook zinc is cubic crystal. White to off-white or yellow powder. The relative density is 4.102, and the melting point is l700ºC.

Δ Thermal expansion coefficient (volume): 100°C, 0.156; 200°C, 0.386; 400°C, 0.898; 800°C, 1.996.

Δ It can be slowly oxidized to sulfate in the air. The crystal transformation temperature is 1020ºC. Soluble in dilute inorganic acids. not soluble in water.

APPLICATION
Δ Used as a matrix for analytical reagents, phosphors, and also in the manufacture of dyes and curing oils

Δ  Zinc sulfide (ZnS) is widely used in making infrared windows, fairings and infrared optical components, and has the characteristics of high purity, insoluble in water, moderate density, and easy processing.

Δ  Used as analytical reagents, phosphors, and photoconductor materials. Also used in the manufacture of dyes, coatings, pigments, glass, curing oil, etc. Used for various filters and laser window coatings.

The company's overseas markets have expanded to more than 200 countries around the world:
The main sales markets are in the United States, Canada, Mexico, France, Italy, Spain, Brazil, Russia, Japan, the United Kingdom, Germany, Australia, etc.

As for pre-sales service:
1 We can provide you high quality products with factory price
2 Easy communication and comfortable cooperation
3 Better payment terms : T/T, Paypal, moneygram, credit card, etc

As for in-sales service:

1 We offer fast and safe shipping services, takes only 5-7 days.
2 Various shipping ways : by air./ by sea / by courier (FedEx)
3 Provide technical documentation support when required.

As for after-sales service:

1 Provide helps when there's any custom issues
2 Product compensation when it's hold in clearance

1.Will you supply samples for test the quality? 
We'd like to offer the samples for the quality evaluation,the shipping cost is borne by customers.

2.What is your package?
Powder: PE bag, glass bottle or PTFE bottle for inner packing
Liquid: glass bottle or PTFE bottle for inner packing
Bulk order: Fiber drum or steel drum.

3.What is your delivery term and delivery period? 
FOB, CIF, etc. You can choose the one which is the most convenient or cost effective for you.The sample within 5 days, and bulk order within 7 days.

4.How to delivery by express?
A: Parcel will be shipped out in 3 working days after payment. Usually we use EMS, ePacket, Fedex, DHL, TNT and USA Domestic mixed shipping and so on. 

5.Is there a discount?
A: Yes, for larger quantity, we always support with better price. 

6.What's your MOQ?
A: For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low, price product, our MOQ starts from 100g and 1kg.

7.How to make orders?
A: Send inquiry to us,we do the offer. Payment via Western Union, Moneygram, Bank Account ect.. Then we will arrange shipping. After delivery we will offer tracking No.