Complaint
China Factory Sell block and powder form CAS 7446-08-4 Selenium Dioxide with best price
| Product name | Selenium dioxide |
| Synonyms | SeleniuM dioxide >=99.9% trace Metals basis;SeleniuM dioxide reagent grade, powder, 98%;NSC 56753;Selenium dioxide 99.999% trace metals basis;Selenium dioxide ReagentPlus(R), powder, 99.8% trace metals basis;BLUE DUO PROTEIN MARKER,HIGH RANGE;Selenium(IV) oxide, 99% trace metals basis;Selenium(IV) oxide, 99.999% trace metals basis
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| Cas | 7446-08-4 |
| MF | O2Se |
| MW | 110.96 |
| EINECS | 231-194-7 |
| Product Categories | metal oxide;Inorganics;Metal and Ceramic Science;Oxides;Selenium;Others;-;Oxidation;Synthetic Reagents |
| Melting point | 315 °C (subl.)(lit.) |
| Boiling point | 684.9 °C(lit.) |
| density | 4.81 g/mL at 25 °C(lit.) |
| vapor pressure | 1 mm Hg ( 157 °C) |
| refractive index | nD20 <1.76 |
| Fp | 315°C |
| storage temp. | Store below +30°C. |
| solubility | H2O: soluble |
| form | powder |
| Item | Qualified | First class |
| Se02 ≥ | 98% | 99% |
| Water insoluble | 0.01% | 0.005% |
| Burning residue | 0.2% | 0.1% |
| Fe | - | 0.001% |
| Heavy metal Pb | - | 0.005 |
| Chloride | - | 0.005 |
| As | - | 0.001 |
Selenium Dioxide Application :
1. It is used for the production of electrolytic manganese metal
2, used in the production of sodium selenite
3, two selenium oxide is used as organic compound oxidant, catalyst, chemical reagent, all kinds
of inorganic selenium compound made of raw materials. As a special reagent of alkaloids, can
also be used in the preparation of zirconium, hafnium and selenium compounds react with
ammonia to generate nitrogen and selenium precipitation, generating selenite ethyl ammonium,
amorphous selenium and hydrazine and nitrogen generating black, amorphous selenium
and formation of hydroxylamine hydrochloride nitrogen and red brown, with nitric acid to
produce selenite.
4, two selenium oxide is used to make high pure selenium and other selenium compounds.
It is also used in copier, rectifier and so on.
Selenium Dioxide PACKAGE IS 25KG PAPER DRUM
25kgs packaging Fiber drum outside and plastic bag inside 1-25kgs packaging aluminium bag outside and double plastic bag inside
Delivery Detail: within 10 days when get the payment.
Shipping :
We have Professional shipping agent, based on customers ' demand for transport
By express :FEDEX,DHL,EMS ,UPS,TNT ect.
By SEA and By AIR
Thanks for your considering of Hebei Guanlang Biotechnology Co., Ltd.(Crovell).Crovell is a fast growing intermediates company,Which located in Shijiazhuang,Hebei Province.
Crovell is specialized in pharmaceutical intermediate,veterinary drug intermediates and dyes intermediates,such as phenylacetamide,dimethylamine hcl, benzyl chloride etc.Crovell also supply various industrial chemicals for customers, such as citric acid,potassium chloride etc.
So far,Crovell has business in more than 35 countries,most big customers come from europe and America, because among the suppliers in china,Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+, such as 2-phenylacetamide. This is the important reason for customers who choosing Crovell.
Q: How to start orders or make payments?
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.
Q: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q: 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.
Q: Is there a discount?
A: Yes, for larger quantity, we always support with better price.
Q:How do you treat quality complaint?
First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q:How to contact us ?
You can choose your interested products and send inquiry to us.You can dial our telephone directly, you will get our reply.
Send Email to us.
