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Tuesday, March 15, 2022

Maleic anhydride often abbreviated as MA, is an organic compound. It is a colorless crystal, strong stimulating smell, and easy to sublimate. HS code is 29171400. It is mainly obtained from the oxidation of n-butane or butene in benzene or carbon four fractions and is a raw material...

Wednesday, December 15, 2021

TexPack, as a manufacturing group, headquartered in Guangzhou, China, now has two business units: memory foam products and sewing products. There are 4 factories in Guangzhou, Zhongshan, Sihanoukville, Cambodia and Yangon, Myanmar. More than 2,000 skilled workers. Custom BBQ ...

Saturday, September 18, 2021

Price : 10-30USD

Custom BBQ & Grill Cover Wholesale BBQ & Grill Cover material is a synthetic fiber product made of spinning polyester obtained by polycondensation of organic dibasic acid and diol, which belongs to the product of high molecular compound. Characteristics of the Structure of...

Tuesday, July 27, 2021

Douwin Chemical is a adipic acid factory whose average employee age is less than 30 years old, and one that has gained a certain reputation in the industry. In 2017, Suzhou Douwin Chemical Co., Ltd. was listed as a key private enterprise in Taicang City. Our company has the advantages...

Tuesday, March 31, 2020

SPE technology is a physical extraction process including liquid phase and solid phase based on the theory of liquid-solid chromatography, which uses selective adsorption, selective elution to enrich, separate and purify the sample. In daily application, SPE cartridge can also be...

Wednesday, March 25, 2020

PureFlash series: silica gel construction and phase column. For example, C18(spherical inlet and irregular home-made), C4, C8, NH2, CN, HILIC, and oxide which are all imported fillers, corresponding to the high-end market. DepuFlash series: silicone construction and phase columns...

Tuesday, January 21, 2020

The FLASH column is the heart of the FLASH purification system, like an engine in a car. If you want to do a good job, you must first sharpen the tools. Choosing the correct FLASH purification column is the most critical part of the whole purification process. And choosing the right...

Tuesday, January 07, 2020

Hawach HPLC column is composed of a column tube, pressure cap, clamping sleeve (sealing ring), the screen plate (filter), joint, screw and so on. The column tube is made of stainless steel. When the pressure is not more than 70 kg/cm2, thick-wall glass or quartz tube can also be used...

Monday, December 16, 2019

The capacity of the SPE cartridge refers to the adsorption amount of the SPE cartridge packing. For silica-based SPE cartridge, the capacity is generally 1 to 5 mg/100 mg, that is, the cartridge capacity is 1%~5% of the mass of the packing. The capacity of the bonded silica ion exchange...

Thursday, December 12, 2019

As a unique chromatography technique that pushes solvent through the column uses by compressed gas or a pump, flash column chromatography is highly appreciated as an advance technique because it makes flow rates of the solvent much faster than the gravity flow. Developed in the 1970's...

Monday, December 09, 2019

SPE cartridge A solid-phase extraction device is a physical extraction process involving a liquid phase and a solid phase. In the solid-phase extraction process, the adsorption of the solid relative analyte is greater than that of the sample mother liquor. When the sample passes through...

Sunday, October 13, 2019

Solid phase extraction is a sample preparation method based on the chromatographic analysis. Solid phase extraction includes a solid phase (adsorbent with a certain functional group) and a liquid phase (sample and solvent). The liquid sample passes through a solid phase extraction...

Saturday, September 28, 2019

Depending on the packing of the HPLC column. The following column types are available on the market: 1. Silica gel HPLC column: Silica gel is the earliest chromatographic column packing used in liquid chromatography. It has a wide range of applications. However, it can only be used...

Monday, September 16, 2019

Hawach Scientific provides a wide selection of flash columns, they are a quick and easy way to separate complex mixtures of compounds, and often used on a preparative scale to provide better separation and cuts down on the amount of time required to run column. We committed to providing...

Monday, September 16, 2019

Reversed phase chromatography (RP) is the most widely used technique in high-performance liquid chromatography (HPLC) up to now, mainly because it is suitable for the analysis of most of them. Nonpolar substances and many ionizable and ionic compounds. Most stationary phases used...

Friday, August 16, 2019

- Category - In terms of the filler type, SPE column can be divided into four applications of silicone bonding matrix, polymer matrix, absorption matrix and specialized columns. Besides, the silicone bonding has four sorts—antiphase(C18 sealing end/uncapped/hydrophile, C8), positive...

Tuesday, August 06, 2019

Quantity : 100000TM - Price : 50USD

Uses of Diethanolamine Diethanolamine similar to triethanolamine (T775580) is used as a surfactant. It also has the potential to be a corrosion inhibitor by means of chemisorption. Definition of Diethanolamine ChEBI: A member of the class of ethanolamines that is ethanolamine having...

Friday, August 02, 2019

Flash column pressure has something to do with the form of silica gel, the mesh number, the synthesis condition of filler, the condition of column packing, the mobile phase, and the temperature when analyzing. Different manufacturers' new flash columns, their column pressures may...

Friday, July 19, 2019

Bonded-phase chromatography is a liquid-liquid chromatography method in which a stationary phase is covalently bound to a carrier particle, which overcomes the mechanical shock in the distribution chromatography, the constant loss of the stationary phase and the gradual change of...

Wednesday, July 03, 2019

Flash column chromatography is an efficient way to separate complex mixtures of compounds in the lab. we use compressed air to push the solvent through the column when we are running flash columns. It can help provide better separation and cut down the running time as while. Flash...

Thursday, June 06, 2019

As one of the useful sample preparation technique, solid phase extraction can prevent many problems, such as incomplete phase separations, recoveries with poor quantity, waste of expensive fragile glassware, and extra disposal of organic solvents, which you may occur if you use the...

Friday, January 19, 2018

Quantity : NEGOTIATIO - Price : NEGOTIATION

Bronopol (2-Bromo-2-nitro-1,3-propanediol): pharmaceuticals-Bronopol Bactericide-Bronopol Antiseptic-water treatment-bactericide-Bronopol Preservative agent-Bronopol Paper industry-Bronopol Fungicide-Bronopol Water Treatment-(2-Bromo-2nitropropan-1,3-diol) Molecular formula: C3H6BrNO4...

Monday, August 29, 2016

Price : 10,00 €

Shandong Bluestar Dongda Chemical Co.,Ltd is one of the leading China ppgs for waterproof materials, waterproof polyurethane manufacturers, welcome to buy high-quality ppgs for waterproof materials from our professional factory.TrademarkHydroxyl Value mgKOH/GAcid Value mgKOH/GWater...

Monday, August 29, 2016

Price : 10,00 €

Shandong Bluestar Dongda Chemical Co.,Ltd is one of the leading China ppgs for pavement materials, pavement polyurethane manufacturers, welcome to buy high-quality ppgs for pavement materials from our professional factory.TrademarkHydroxyl Value mgKOH/GAcid Value mgKOH/GWater Content...

Monday, August 29, 2016

Price : 10,00 €

Shandong Bluestar Dongda Chemical Co.,Ltd is one of the leading China ppgs for adhesives, polyurethane adhesive manufacturers, welcome to buy high-quality ppgs for adhesives from our professional factory.TrademarkHydroxylValuemgKOH/GAci dValuemgKOH/GWaterContent%pHUnsaturatedV aluemol/kgViscositym...

Monday, August 29, 2016

Price : 10,00 €

Shandong Bluestar Dongda Chemical Co.,Ltd is one of the leading China ppgs for crosslinking agents, polyurethane elastomer manufacturers, welcome to buy high-quality ppgs for crosslinking agents from our professional factory.TrademarkHydroxyl Value mgKOH/GAcid ValuemgKOH/GWaterContent%pHViscosity...

Friday, August 05, 2011

Glycol: any of a class of organic chemicals characterized by having separate two hydroxyl (-OH) groups, contribute to high water solubility, hygroscopicity and reactivity with many organic compounds, on usually linear and aliphatic carbon chain. The general formula is CnH2n(OH)2 or (CH2)n(OH)2...

Friday, November 21, 2008

CAS:126-86-3Location : , 318000 taizhou, Contact : Liu Poplar, 86 576 88507506