High Quality Selenium Powder

• Customization: Available
• Certification: RoHS
• Assay Method: HPLC-MS, HPLC
• Model NO.: selenium
• Application: Food, Health Care Products, Medicine
• State: Powder
• Extract Source: Bamboo Leaf Extract
• Product Name: Selenium
• Form: Powder
• Extraction Type: Liquid-Solid Extraction
• Packaging: Bottle, Drum, Vacuum Packed
• Place of Origin: Shaanxi, China
• Grade: Medical Grade
• Package: Bag or Drum
• Packing: Drum
• Test Method: HPLC
• Quality Guarantee Period: 2 Years
• Sample: 10g
• Colour: Black Powder
• Transport Package: Foil Bag and Carton
• Specification: 99%
• Trademark: Customzied
• Origin: China
• HS Code: 2914620000
• Production Capacity: 3000kg/Month

Product Description

 

Product Description

Introduction:

High purity 3N 4N 5N superfine Se powder cas 7782-49-2 selenium powder

1. Features of selenium powder

Amorphous red powder, becoming black on standing and crystalline on heating; vitreous and colloidal forms may be prepared. Amorphous form softens at 40 °C and melts at 217 °C. It rarely occurs in its elemental state in nature, or as pure ore compounds. Soluble in concentrated nitric acid and in (liquid form) common alkalies. Forms binary alloys with silver, copper, zinc, lead, etc. Low toxicity. A necessary nutritional factor for animals.

Photo:

Details:

Symbol:	Se
selenium powder CAS	7782-49-2
selenium powder Atomic Number:	34
selenium powder Atomic Weight:	78.96
selenium powder Density:	4.79 gm/cc
selenium powder Melting Point:	217 oC
selenium powder Boiling Point:	684.9 oC
selenium powder Thermal Conductivity:	0.00519 W/cm/K @ 298.2 K
selenium powder Electrical Resistivity:	106 microhm-cm @ 0 oC
selenium powder Electronegativity:	2.4 Paulings
selenium powder Specific Heat:	0.767 Cal/g/K @ 25 oC
selenium powder Heat of Vaporization:	3.34 K-cal/gm atom at 684.9 oC
selenium powder Heat of Fusion:	1.22 Cal/gm mole

Funcation:
Selenium salts are toxic in large amounts, but trace amounts are necessary for cellular function

Applications of selenium powder:
selenium powder could be used in different fields, according to its purity. Selenium is now used in a variety of applications, from glass and metallurgical applications to pigments, agriculture and electronics.

Packaging & Shipping

Goods 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	1~3 days after your payment
100-200kg	25kg/drum,use two layer PP bag,then into cardboard drum	Air shipping Sea Shipping	3~5 days after your payment
Over 500kg	25kg/drum,use two layer PP bag,then into cardboard drum	Sea shipping	5~10 days after your payment

Company Profile

 

 

 

FAQ

Q1: Can I get some free sample?

A: Yes, we offer free sample to client and you only need to pay the fright.

Q2: Could you accept customzied order? 
A: Yes, we accept customized service according your requests, you can communicate with sales manager to know more details.

Q3: When the product can be delivery? 
A: We normal delivery the product within 2-4 days, the more details will inform to you by our sales manager. 

Q4: Could i get certificate of analysis (COA) about product?
A: Of course, please contact us to get it. 

Q5: Is there any discount?

A:Yes, we can give you discount, but it depends on your quantity.