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2,2-Azobis Isobutyronitrile

2,2-Azobis Isobutyronitrile is a reaction initiator to "kick-start" the polymerisation.It is used as a foamer in plastics and rubber and as a radical initiator.It is also used as Blowing agent for elastomers and plastics.

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2,3-Dihydroindole-2,3-Dione

2,3-Dihydroindole-2,3-Dione is used to make selective herbicides.2,3-Dihydroindole-2,3-Dione and its derivatives are widely used in making perfumes, agrochemicals and medicines.

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Acetylene Dicarboxylic Acid

Acetylenedicarboxylic acid is used in the synthesis of dimethyl acetylenedicarboxylate, an important laboratory reagent. Both the acid and the monobasic salt potassium hydrogenacetylenedicarboxylate KC4HO4 are commonly traded as laboratory chemicals.

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Acid Green 28 LAB GRADE 97%

Alfa Chemistry offers an extensive catalog of building blocks, reagents, catalysts, reference materials, and research chemicals in a wide range of applications. We provide Acid Green 28 (cas:12217-29-7). More information please visit the website: http://www.alfa-chemistry.com/cas_12217-29-7.htm

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Boron Sulfide LAB GRADE 99%

Boron sulfide is yellow to white crystal or amorphous powder. The other name is boron trisulfide or boron(III) sulfide. It turns paste after heating. B2S3 resolve in moist air. It faintly dissolve in phosphorus trichloride and sulfur dichloride. It tend to hydrolyze and form boric acid and hydrogen sulfide. B2S3 resolve in alcohol too. Iron boride is the raw material.

Boron Sulfide

CAS No.: 12007-33-9 Molecular Formula:B2S3 Molecular Weight:118.1 Density:1.55
Melting Point:310℃      
B2S3 Co Cu Al Mg Pb Fe Mn
≥99% 35ppm 20ppm 30ppm 50ppm 10ppm 80ppm 10ppm
Cr Bi Ti Sb As Te Si Na
50ppm 30ppm 80ppm 30ppm 10ppm 10ppm 80ppm 100ppm

 

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Chloro ethanol Technical 99

Photodissociation of 2-chloro ethanol in a molecular beam at 193nm has been investigated[1]. 2-Chloroethanol is widely used as industrial solvent

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Culture Media Ingredients

For any Bacterium to be made for any specific purpose , it is necessary to provide an appropriate biochemical and biophysical environment is made available as “CULTURE MEDIUM” based upon the special need of particular bacteria, a variety of culture media have been developed. The manner in which bacteria are cultivated and purpose of culture media vary widely. In some cases Liquid media is used and in some others Solid medium is found suitable. The usual gelling agent for solid or semi-solid medium is Agar Agar. Agar is used because of its unique physical properties an because its unique physical properties and because it cannot be metabolized by most bacteria . it is also relatively inert and holds nutrients that are in aqueous solution. Other ingredients are added depending on specific purpose.

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Erbium Metal Purified 99.9%

Erbium metal is silver gray rare earth. It is stable in air, however it would slowly react with water and air. It should avoid air, oxides, halogen, acid and moisture. At high temperature, it compound with halogen, oxide, nitride, carbide, silicon and form corresponding compounds. It can process into foil, sheet, rod, wire, powder and sputtering target. Er ingot is of REM 99.9% by distillation method. Erbium powder is of REM 99.9% and particle size -100mesh and -200mesh. There are two production methods, distillation method and reduction method. The distilled erbium piece is dendritic with higher purity than reduced one.

Erbium Metal

Purity: Er/REM 99.9% 3N

CAS No.:7440-52-0 EINECS No.:231-160-1 Molecular Formula:Er Molecular Weight:167.26
Melting Point:1529℃ Boiling Point:2863℃ Density:9.062  

Applications

Erbium metal get uses in nuclear and alloys for example vanadium-erbium alloys, titanium-erbium alloys. Till now, the most prominent application is erbium dopant fiber amplifier. It is doping small amount of erbium ion in quartz fiber. Another prospect application is laser , especially medical laser. Erbium is laser ion that transferring laser materials including monocrystal(fluoride, oxysalt) and fiberglass, for example Er:YAP crystal and ZrF4-BaF2-LaF3-AlF3-NaF fiberglass.  These already get commercial uses. Yb,Er:BaYF5 can convert infrared ray to visible light. This kind of photo converting material apply to night-vision successfully.Erbium metal is silver gray rare earth. It is stable in air, however it would slowly react with water and air. It should avoid air, oxides, halogen, acid and moisture. At high temperature, it compound with halogen, oxide, nitride, carbide, silicon and form corresponding compounds. It can process into foil, sheet, rod, wire, powder and sputtering target. Er ingot is of REM 99.9% by distillation method. Erbium powder is of REM 99.9% and particle size -100mesh and -200mesh. There are two production methods, distillation method and reduction method. The distilled erbium piece is dendritic with higher purity than reduced one.

Erbium Metal

Purity: Er/REM 99.9% 3N

CAS No.:7440-52-0 EINECS No.:231-160-1 Molecular Formula:Er Molecular Weight:167.26
Melting Point:1529℃ Boiling Point:2863℃ Density:9.062  

Applications

Erbium metal get uses in nuclear and alloys for example vanadium-erbium alloys, titanium-erbium alloys. Till now, the most prominent application is erbium dopant fiber amplifier. It is doping small amount of erbium ion in quartz fiber. Another prospect application is laser , especially medical laser. Erbium is laser ion that transferring laser materials including monocrystal(fluoride, oxysalt) and fiberglass, for example Er:YAP crystal and ZrF4-BaF2-LaF3-AlF3-NaF fiberglass.  These already get commercial uses. Yb,Er:BaYF5 can convert infrared ray to visible light. This kind of photo converting material apply to night-vision successfully.

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Erbium Oxide Purified 99.9%

Erbium oxide is pink powder, which is rare earth oxide. It is insoluble in water, but soluble in acid. Er2O3 absorb CO2 and H2O in air to form subcarbonate salts. It is stable at room temperature and pressure. When heating to 1300℃, it turns into hexagonal crystal and not melt. Its property and production method is close to other lanthanum series elements.

Erbium Oxide

CAS No.:12061-16-4 EINECS No.:235-045-7 Molecular Formula:Er2O3 Molecular Weight:382.52
Density:8.64 Melting Point:1522℃ Boiling Point:2355℃  

Applications

Erbium(III) oxide mainly applies as dopant of yttrium iron garnet and control material of nuclear reactor. It is also raw material for special luminescent glasses and infrared absorbing glass.

Erbium trioxide is colorant for glass, which make glass show rosy. It is also additive for yttrium aluminum garnet laser material and activating agent for fluorescent powder. It is catalyst for prepare oil chemicals.

In producing crystal glass, it need remove yellow color that caused by 3+ iron ion. Adding erbium(III) oxide with or without neodymium oxide remove yellow efficiently.

 

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