As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:3236-82-6
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Cas:3236-82-6
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:3236-82-6
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
Cas:3236-82-6
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
inquiryNIOBIUM ETHOXIDE Basic information Product Name: NIOBIUM ETHOXIDE Synonyms: COLUMBIUM PENTAETHOXIDE;niobium(5+) ethanolate;NIOBIUM ETHOXIDE;NIOBIUM ETHYLATE;NIOBIUM PENTAETHOXIDE;NIOBIUM(V) ETHOXIDE;NIOBIUM(V) PENTAETHOXIDE;Ethanol, niobium(5+) salt
1.In No Less 10 years exporting experience. you can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specializ
Cas:3236-82-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Cas:3236-82-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Mater
Cas:3236-82-6
Min.Order:0 Metric Ton
FOB Price: $18.0 / 20.0
Type:Lab/Research institutions
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
Cas:3236-82-6
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:3236-82-6
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:3236-82-6
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:3236-82-6
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryShandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W
Cas:3236-82-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:3236-82-6
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:3236-82-6
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:3236-82-6
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryJ&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals
1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:3236-82-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1,we produce and sell good chemicals around the world.2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%.3,our staff consists of highly qualified in
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:3236-82-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOcean inorganic department is a professional supplier and exporter engaging in inorganic chemical materials and metal organic compounds. Over the past years, our company is committed to improving the product quality and developing new products, in or
We are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
Ethanolate,niobium(5+) Application:Ethanolate,niobium(5+)
niobium pentachloride
D
niobium(V) ethoxide
Conditions | Yield |
---|---|
With ethanol In ethanol N2-atmosphere; 0.5 M NbCl5; varying product ratio depending on temperature; |
Conditions | Yield |
---|---|
In benzene introduction of dry NH3 into boiling soln. of NbCl5 in benzene containing CH3OH;; evaporization of soln.;; | |
With ammonia In toluene byproducts: NH4Cl; to a suspn. of NbCl5 added ethanol and ammonia; filtered, vac. distillated (158°C, 0.1 mbar); |
Conditions | Yield |
---|---|
With ammonia In benzene alcoholysis on passing NH3 through the reaction soln.;; | |
With NH3 In benzene alcoholysis on passing NH3 through the reaction soln.;; |
A
niobium(V) ethoxide
B
niobium pentabromide
Conditions | Yield |
---|---|
In neat (no solvent) heating;; |
Conditions | Yield |
---|---|
In toluene under Ar; suspn. of Bi deriv. and salicylic acid in PhMe refluxed for 1 h, cooled to room temp., added dropwise Nb ethoxide, stirred at room temp. for 24 h; concd. in vac., washed (Et2O), dried in vac., recrystd. from CH2Cl2/hexane; elem. anal.; | 69% |
4-methyl-2-mercaptophenol
niobium(V) ethoxide
triethylamine
HN(C2H5)3(1+)*Nb(C7H6OS)3(1-) = (HN(C2H5)3)[Nb(C7H6OS)3]
Conditions | Yield |
---|---|
In methanol byproducts: EtOH; (inert atmosphere); stirring (1 h); evapn. (vac.), stirring with Et2O for several h, filtration, recrystn. (MeCN/Et2O); elem. anal.; | 67% |
Conditions | Yield |
---|---|
With Mg(OOCCH3)2 In toluene under Ar; suspn. of Bi deriv. and salicylic acid in PhMe refluxed for 1 h, concd. in vac., redissolved in 2-propanol, added Mg salt, added dropwise Nb ethoxide, left at room temp. for 14 d; filtered, redissolved in CH2Cl2, filtered (Celite), added hexane; elem. anal.; | 57% |
With NaOOCCH3 In toluene under Ar; react. of Bi deriv. with Nb ethoxide and ligand; | 0% |
In toluene under Ar; react. of Bi deriv. with Nb ethoxide and ligand; | 0% |
hexamethyldisilathiane
tetraethylammonium chloride
niobium(V) ethoxide
4(C2H5)4N(1+)*Nb6S17(4-)*3CH3CN=((C2H5)4N)4[Nb6S17]*3CH3CN
Conditions | Yield |
---|---|
In acetonitrile byproducts: Me3SiOEt, Me3SiCl; a mixt. of Nb(OEt)5 and Et4NCl in MeCN was stirred at 50°C for 20-25 min, to the warm mixt. was added with stirring (Me3Si)2S, after it was cooled to room temp., the mixt. was stirred for 4-12 h; mixt. was filtered, ether was added, ppt. was recrystd. from MeCN; elem.anal.; | 55% |
hexamethyldisilathiane
tetraethylammonium chloride
niobium(V) ethoxide
sodium thioethylate
Conditions | Yield |
---|---|
With LiOC2H5; N,N,N',N'-tetramethylethylenediamine In acetonitrile byproducts: NaCl; (N2); stirring a CH3CN soln. of LiOEt and (Me3Si)2S; adding a ether soln. of Nb(OEt)5; stirring for 1 h; addn. of tetramethylethylenediamine; diluting (CH3CN); addn. of Et4NCl, FeCl2 and NaSEt; stirring overnight; filtration; concn.; diffusing ether into the filtrate; agitating;removing the powder with the mother liquor maintaining at 5°C for 5 d; collecting the crystals; washing (CH3CN/ether, ether); elem. anal.; | 33% |
zinc diacetate
niobium(V) ethoxide
bismuth(III) acetate
Conditions | Yield |
---|---|
Stage #1: niobium(V) ethoxide; titanium(IV)isopropoxide; silica gel In methanol at 23℃; for 18.1667h; Stage #2: With oxygen at 450℃; for 4h; |
Conditions | Yield |
---|---|
Stage #1: niobium(V) ethoxide; silica gel In methanol at 20℃; for 18.1667h; Stage #2: With oxygen at 450 - 550℃; for 4h; |
Conditions | Yield |
---|---|
With ammonia In ethanol; cyclohexane Nb(OC2H5)5 and Pb(CH3COO)2 soln. in EtOH refluxing (16 h), cyclohexane and Mg addn., refluxing (2 h), aq. NH3 addn., refluxing (80°C, 24 h); drying (100°C); scanning electron microscopy; | |
With ammonia In ethanol; cyclohexane; acetone Nb(OC2H5)5 and Pb(CH3COO)2 soln. in EtOH refluxing (16 h), cyclohexane and Mg addn., refluxing (2 h), acetone addn., aq. NH3 addn., refluxing (80°C, 24 h); drying (100°C); scanning electron microscopy; |
niobium(V) ethoxide
Conditions | Yield |
---|---|
With water; 1,8-diazabicyclo[5.4.0]undec-7-ene; acetylacetone In ethanol High Pressure; Nd(OC2H5)5 with C5H12O2 stirred for 10 min under N2 atm., C2H5OH added, stirred at 50°C for 30 min; 1,8-diazabicyclo(5.4.0)undec-7-ene and C5H12O2 added, evapd. at 40°C; H2O added; heated to 230°C in autoclave for 12 h; films prepd.; detd. by XRD, SEM, UV-VIS-spectroscopy; | |
Kinetics; byproducts: C4H10, C4H8, C2H6; gas-phase thermal decompn. under static condns. (const. temp. in range 300-350°C, static vac. apparatus) without or with additives (ethanol, ether); further byproducts: H2, Et2O, EtOH, CH2=CH2, H2O; monitoring by manometric method; mass spectroscopy; | |
In water at 79.84℃; | |
Stage #1: niobium(V) ethoxide In tetrahydrofuran for 0.166667h; Stage #2: With hydrogenchloride In tetrahydrofuran; water for 1h; |
niobium(V) ethoxide
Conditions | Yield |
---|---|
With tartaric acid; acetylacetone In butan-1-ol Nb ethoxide and acetylacetone soln. refluxing (N2, 50°C, 1 h), tartaric acid addn., refluxing (80°C), partial evapn., fibre or film preparation, heat treatment (Ar, 500-1500°C, 1 h); X-ray diffraction, electron microscopy; | |
With benzene-1,2-diol; acetylacetone In butan-1-ol Nb ethoxide and acetylacetone soln. refluxing (N2, 50°C, 1 h), catechol addn., refluxing (80°C), partial evapn., fibre or film preparation, heat treatment (Ar, 500-1500°C, 1 h); X-ray diffraction, electron microscopy; | |
With ethylene glycol; acetylacetone In butan-1-ol Nb ethoxide and acetylacetone soln. refluxing (N2, 50°C, 1 h), ethylene glycol addn., refluxing (80°C), partial evapn., fibre or film preparation, heat treatment (Ar, 500-1500°C, 1 h); X-ray diffraction, electron microscopy; |
Conditions | Yield |
---|---|
In water hydrolysis of Nb(OC2H5)5;; | |
In water hydrolysis of Nb(OC2H5)5;; |
Conditions | Yield |
---|---|
With oil In ethanol stoich., microemulsions (water, oil, ethoxide) mixed, powders annealed in air at 200-1000°C for 1-12 h; elem. anal., SEM, XRD; |
Conditions | Yield |
---|---|
In further solvent(s) | |
In further solvent(s) |
oxygen
niobium(V) ethoxide
Conditions | Yield |
---|---|
In gaseous matrix epitaxial drown in cold-wall, low-pressure metal-organic chemical vapordeposition reactor with resistive substrate heater(on (001) SrTiO3 and SrRuO3/SrTiO3); N2 carrier gas; substrate temp. 700-800°C; 6 Torr; O2 oxidant introduced into reactor; XRD; scanning probe microscope image; |
Conditions | Yield |
---|---|
In ethanol Nb(OC2H5)5 soln. with Mg refluxing (15 h), Ba(OH)2*8H2O addn. stirring (room temp., 2 h), refluxing (80°C, 24 h); drying (100°C); scanning electron microscopy; | |
In ethanol; acetone Nb(OC2H5)5 soln. with Mg refluxing (15 h), acetone addn., Ba(OH)2*8H2O addn. stirring (room temp., 2 h), refluxing (80°C, 24 h); drying (100°C); scanning electron microscopy; |
Conditions | Yield |
---|---|
With ethoxyethane In ethanol under N2; dissolved Sr and Ba; refluxed for 12 h; mixed with Nb(OEt)5 soln.; refluxed; concd.; dried at 100°C in air; heated at 600-1200°C in an oxygen flow for 4 h; XRD; DTA; TG; IR; |
Conditions | Yield |
---|---|
With ethoxyethane In ethanol under N2; dissolved Sr and Ba; refluxed for 12 h; mixed with Nb(OEt)5 soln.; refluxed; concd.; for powder: dried (100°C, air); heated (700°C, oxygen flow, 4 h); for films: dip-coated, crystd. on sapphire or MgO(100) at 700°C for 4 h; XRD; DTA; TG; IR; |
Conditions | Yield |
---|---|
With ethoxyethane In ethanol under N2; dissolved Ba; refluxed for 12 h; mixed with Nb(OEt)5 soln.; refluxed; concd.; dried at 100°C in air; heated at 600-1200°C in an oxygen flow for 4 h; XRD; DTA; TG; IR; |
Conditions | Yield |
---|---|
In ethanol (N2), Ba refluxing in ethanol (80°C, 1 h), NaOEt and Nb(OEt)5 addn., refluxing (18 h), dip coating (SiO2, Pt/MgO substrate), drying, calcination (500°C, 1 h), crystalization (800°C, 1 h); X-ray diffraction; |
Conditions | Yield |
---|---|
With ethoxyethane In ethanol under N2; dissolved Sr and Ba; refluxed for 12 h; mixed with Nb(OEt)5 soln.; refluxed; concd.; dried at 100°C in air; heated at 600-1200°C in an oxygen flow for 4 h; XRD; DTA; TG; IR; |
Conditions | Yield |
---|---|
In not given soln. of LiNO3 and Nb(OEt)5 is heated (resin method), resin is pyrolyzed and then calcined (1000 K for 12 h), resulting metal-oxide powder is pressed into pellets, sintered at 1400-1600K for 24 h; XRD; |
Conditions | Yield |
---|---|
With H2O In ethanol in pure, dry N2; stirred; refluxed for 24 h; hydrolysed by addn. of H2O/ethanol, evapd.; dried at 100°C; heated at 650°C in air; XRD; TG; DTA; |
niobium(V) ethoxide
titanium(IV)isopropoxide
strontium ethoxide
Conditions | Yield |
---|---|
In ethanol; 2-methoxy-ethanol (N2); reflux of soln. of Sr(OEt)2 and Ti(O(i-Pr))4 in EtOH and MeOCH2CH2OH, addn. of soln. of Nb(OEt)5 in EtOH as a molar ratio Sr:Ti:Nb= 1:0.95:0.05; reflux for 24 h, evapn., pptn., drying, heating at 400-1000°C in O2 for 1 h; |
Conditions | Yield |
---|---|
In neat (no solvent) aq. H2O2 added to soln. of ethoxides in ethanol, stirred in air for morethen 2 h, refluxed for 3 h at 100 °C with H2O addition, residual H2O2 decomposed on Pt at 100 °C for 3 h, dried in air, annealed at 400-700 °C for 1.5 h in O2; powder XRD, TGA, DTA,; |
niobium(V) ethoxide
lead(II) acetate trihydrate
magnesium(II) acetate tetrahydrate
Conditions | Yield |
---|---|
With H2C2O4*2H2O; HNO3 In water aq. Pb-compd. soln.and HNO3 addn. to Nb-compd., Mg acetate addn., freeze-drying, calcination (800-875°C, 4 h), pelletizing, sintering (1000-1200°C, 4 h); scanning electron microscopy; | |
Pb and Mg acetate addn to Nb-compd., spray pyrolysis, calcination (800-900°C, 4 h), pelletizing, sintering (1000-1200°C, 4 h); scanning electron microscopy; |
Conditions | Yield |
---|---|
In 2-methoxy-ethanol Pb-compd. soln. heating (124°C), Nb- and Mg-compd. soln. addn, water addn., calcination (700-1000°C), pelletizing, sintering (1000-1200°C, 4 h); scanning electron microscopy; |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View