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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: RUNHANG
  • Model Number: 99.99%
  • Application: Medical
  • Shape: White crystal
  • Material: Cesium
  • Dimensions: 80-100mesh
  • Chemical Composition: Cs2CO3
  • Formula: Cs2CO3
  • Appearance: Colourless, crystalline and hygroscopic substance
  • Formula weight: 325.82
  • Density: 4.072 g/cm3 at 20°C
  • Solubility: 2,615 g/L at 15°C
  • CAS No: 534-17-8
  • EINECS No: 208-591-9

Packaging & Delivery

Packaging Details 25kg plastic drum or according to customers' requirment.
Delivery Time 12 days
Product Description

 

Cesium Carbonate 99.9%

Formula Cs2CO3

Purity 99.9% Min.

CAS No. 534-17-8

Appearance Colourless, crystalline and hygroscopic substance

Formula weight 325.82

Density 4.072 g/cm3 at 20°C

Solubility 2,615 g/L at 15°C

Specification

s2CO3 min%  

Impurities Max % 

Li 

Na 

Ca 

Mg 

Fe 

Al 

SiO2 

Rb 

 Pb 

99.0 

0.001% 

0.02% 

0.02% 

0.005% 

0.001% 

0.001% 

0.005% 

0.008% 

0.5% 

0.001% 

99.9

5ppm

50ppm

50ppm

30ppm

5ppm

5ppm

50ppm

50ppm

200ppm

5ppm

99.99

1ppm

10ppm

5ppm

10ppm

1ppm

1ppm

2ppm

10ppm

10ppm

5ppm

Particle Size: 80-100 Mesh(Milled Fine Grade) will be available on request.

 

Applications:Cesium carbonate is a versatile base in organic synthesis.

Packaging:Polyethylene bottles or bags in drums

Cesium product range

acetate

bicarbonate

bromide

carbonate

chloride

fluoride

hydrogen carbonate

hydroxide, aqueous solution or monohydrate

iodide

nitrate

sulfate

Due to the nature of the production process, small amounts of cesium will be present either

as hydroxide or as bicarbonate.

 

Cesium Applications :

___ Biotechnology
DNA is a molecule which contains the genetic information needed for the reproduction of every organism. High purity cesium salts, e.g. cesium chloride, cesium sulfate, cesium trifluoroacetate and rubidium chloride are used in the recovery and purification of DNA by ultracentrifugation, for application for example in the development of pest resistant agricultural crops.

 

___ Catalysis
Because of its low ionization potential, cesium effectively promotes the performance of many metal oxide catalysts for heterogeneous processes. This effect is often enhanced by cesium's ability to stabilize high oxidation states of transition metal oxo anions.
By formation and stabilization of complex salts with transition metal halide catalysts, cesium will also promote heterogeneous halogen transfer processes.
In homogenous catalysis, reaction rates are sometimes limited by the solubility of an anionic compound in an organic solvent, in which case the use of cesium as cation may solve the problem.

 

___ Organic Synthesis

The solubility of some cesium salts in polar solvents makes them efficient bases for organic reactions (e.g. cesium fluoride, cesium carbonate). Cesium alkoxides should be considered in cases where the sodium and potassium counterparts fail to give good results due to strong influence of the cation on the reaction mechanism. Cesium fluoride is a highly active fluorination agent.

 

___ Glass manufacture
Various forms of cesium, especially cesium nitrate, cesium carbonate and cesium bicarbonate, are used as glass components to achieve various objectives. The refractive index of optical glass - in the bulk or on the surface only - can be modified by addition of cesium salts. Through surface ion exchange with cesium salt melts or solutions, the glass surface can be made resistant to corrosion or breakage.

 

___ Radiation monitoring
Cesium iodide and fluoride have the ability to absorb x-rays, gamma and particle radiation, emitting visible light. This so-called scintillation effect is used in medical diagnostics, exploration for natural resources and in nuclear physics research.

 

___ Brazing
Cesium compounds such as cesium fluoride or cesium aluminum fluoride are increasingly used as flux components in the brazing of aluminum alloys. In response to growing requirements concerning weight, performance, costs and quality, these aluminum alloys have recently replaced copper alloys in the automotive industry, e.g in heat exchanger systems.
They preferably have a high magnesium content as it increases the mechanical strength of the alloy. Cesium containing fluxes can counteract brazing problems arising from this high magnesium content. Conventional fluxes however fail in this respect and are therefore not suitable as brazing aids.

 

Company Information

 

Guangzhou Runhang Chemical Co.,Ltd. was established in 2000, which is mainly engaged in manufacturing, selling, importing & exporting tungsten , molybdenum,rare earth and other chemicals. Our factories are located in many provinces of China, such as Jiangxi, Anhui, Guangdong and Jiangsu provinces. Our products include: Sodium Tungstate, Ammonium Paratungstate, Tungsten Oxide, Tungsten Powder, Tungsten Carbide Powder, Tungsten Alloy, Tungsten Bar, Sodium Molybdate, Ammonium Molybdate, Molybdenum Powder, Molybdenum Bar/Plate, Ferro Molybdenum, Cerium Oxide,Paraseodymium Oxide, Erbium Oxide ,Neodymium Oxide,Terbium Oxide,Samarium Oxide,Lanthanum Oxide,Yttrium Oxide, Relying on rich capital and advanced technique,we've reached our goals in the past years and become stronger and stronger. 80% of our products are exported to Southeast Asia, the Middle East, Europe and the USA. Reliable product quality and the most competitive price have attracted many customers from all over the world and gained good reputation for us.

Since our establishment, we have insisted on the tenet of "Based on the technique, oriented on the market, develop on quality" and made innovation on new products and techniques continuously.

We'll make great efforts in the future, catching up the trend to achieve "innovation on the management, techniques and products" and satisfy our customers.

Finally, we welcome domestic and foreign customers from all over the world to establish good business relationship and friendship with us.

Our Services

 

1.Stable quality and stable quantity supply.

2.Advanced equipment for testing quality of each order.
3.Deliver on time
4.16 years experience on customer service.

FAQ

 

1.Are you manufacturer or trading company?

We are manufacturer and have cooperative factory.
2.Can you export chemical products?
Yes,we have export license and quota,can export chemical products to any countries.
3.How can you keep good quality?
We have professional technologist for analysing product quality of each batch material.
4.Can you supply stable quantity for each shipment?
Yes,our company have the production capacity. 
5. Can I get sample?
Yes, we can send sample for free.
6. What about the delivery time?
Within 12 working days after order confirmation;
7. Can i visit your factory?
Yes, welcome to our factory for business conversation.

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