METHANOL - 134 Annonces

Mercredi 19 octobre 2022

Name: Hydroxy Terminated Polydimethylsiloxane (Methyl Silicone PDMS Oil) Melt Point (℃): -59 Spontaneous combustion point (℃): 450 Saturated vapor pressure (KPa): No Data Explosive: No Data Solubility: Soluble in benzene, toluene, ethylene, ethyl ether, partially soluble in ethanol...

Jeudi 07 juillet 2022

liquid silicone oil have unique properties because they are not products of petroleum or organic chemistry. They were the first, and are still the only, major class of polymers that are products of inorganic chemistry. Zhongtian Silicone Fluid Product Series Among the whole products series...

Vendredi 10 juin 2022

Quantité : >5 units - Prix : 1 000,00 €

Solvent Recovery Plant Solvent Can Be Recovered Name of solvent Name of solvent Methanol Isopropanol Ethanol (Can reach absolute ethyl ) Acetonitrile Methylbenzene Ethyl acetate Acetone THF Dichloromethane DMF PCC was established in 1993, and it's a state owned company...

Mercredi 09 mars 2022

Chlorosilanes are a class of liquids that range in color from clear colorless to light yellow colored. A clear to light yellow liquid. Slightly more dense than water. Contact may burn skin, eyes and mucous membranes. May be toxic by ingestion, inhalation, and skin absorption. Used...

Vendredi 14 janvier 2022

Prix : 25 900,00 €

We've grown with the craft industry, and with the onset of craft distilling, our quality craftsmanship and experience with copper is producing distillation systems of the highest quality. DEGONG can custom 50-5000L shelf distillers based on your request. The Still, from a solely practical...

Samedi 01 janvier 2022

Name: Polydimethylsiloxane (Methyl Silicone Oil) Melt Point (℃): -59 Spontaneous combustion point (℃): 450 Saturated vapor pressure (KPa): No Data Explosive: No Data Solubility: Soluble in benzene, toluene, ethylene, ethyl ether, partially soluble in ethanol, butanol, acetone, insoluble...

Mardi 21 décembre 2021

LEFOO was founded in 1995, over the past 25 years LEFOO has grown to one of the professional peristaltic pump manufacturers that has 3 subsidiaries with 3 production bases, which total area is 50,000 square meters. LEFOO Group has 900 employees, includes more than 80 technical R...

Samedi 11 décembre 2021

Quantité : >5 units - Prix : USD1000

Solvent Recovery Plant Solvent Can Be Recovered Name of solvent Name of solvent Methanol Isopropanol Ethanol (Can reach absolute ethyl ) Acetonitrile Methylbenzene Ethyl acetate Acetone THF Dichloromethane DMF Method of Solvent Recovery Batch distillation Continuous...

Samedi 25 septembre 2021

RO booster pump also referred to as the reverse osmosis booster pump, RO Booster Pump 75-gpd is a device to increase water pressure coming into the small residential RO kits. Small residential RO kits typically operate fine at least 60 PSI, However, with higher water pressure, you...

Jeudi 09 septembre 2021

Quantité : 10 sets/mo - Prix : USD5000-200000

This series of hydrogen booster compressors are mainly used for (methanol, natural gas, coal gas) cracking hydrogen production, water electrolysis hydrogen production, hydrogen filling bottle, benzene hydrogenation, tar hydrogenation, catalytic cracking, and other hydrogen booster compressors...

Lundi 02 août 2021

La rutine est extraite des bourgeons séchés de Sophorae Japonica. La rutine pure est un cristal en forme d'aiguille de couleur jaune ou jaune-vert. La rutine est un glycoside de flavonol composé de la quercétine et du disaccharide rutinose. La rutine est un puissant antioxydant. Il...

Samedi 31 juillet 2021

La saponine de thé, un composé glycoside extrait des graines de thé de camélia, est un excellent tensioactif naturel non ionique. Il peut être largement utilisé dans les pesticides, la culture, le textile, les produits chimiques quotidiens, l'arthite Propriété physicochimique : La...

Mardi 27 juillet 2021

Prix : 10-30USD

Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone products manufacturer, mainly engaged in organic silicon monomer, research and development of fluorine silicon new materials and silicone sealant. Chlorosilanes are a class of liquids that range in color from clear colorless...

Mardi 25 mai 2021

Zhongtian East Fluorine Silicon Material Co., Ltd.,a silicone products manufacturer, mainly engaged in organic silicon monomer, research and development of fluorine silicon new materials and silicone sealant. Name: Polydimethylsiloxane (Methyl Silicone Oil) Melt Point (℃): -59 Spontaneous...

Mardi 02 mars 2021

This series of hydrogen booster compressors are mainly used for (methanol, natural gas, coal gas) cracking hydrogen production, water electrolysis hydrogen production, hydrogen filling bottle, benzene hydrogenation, tar hydrogenation, catalytic cracking and other hydrogen booster compressors...

Lundi 30 mars 2020

1. Why does the QuEChERS approach recommend use dry ice or liquid nitrogen homogenizing frozen samples and extracting samples while frozen? The frozen samples were homogenized with dry ice or liquid nitrogen, and the samples were made into a fine powder (smaller particle size, more homogeneous)...

Mardi 17 mars 2020

Cleaning and storage of HPLC column Have a good understanding of the sample made, and wash it with the mobile phase that has the strongest eluting capacity for the sample. For silica gel HPLC column, first wash away the polar impurities with methanol, then use dry dichloromethane...

Mardi 21 janvier 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...

Mercredi 09 octobre 2019

Solid phase extraction (SPE) is used to reduce sample matrix interference and improve detection sensitivity. The separation selectivity of the solid phase depends on the retention strength of the components that can be retained, so the selection of the solid phase will depend on the...

Jeudi 12 septembre 2019

Filtration is a process in a chemical experiment, separating solids from liquids or gases through a filter medium. Only the fluid or the gas is allowed to pass, not the solid. And the key words of filtration terms can help you understand how the filter works. Hydrophilic, called “water-loving”...

Mercredi 11 septembre 2019

When storing the column, the column should be filled with acetonitrile or methanol, and the column joint should be tightened to prevent the solvent from evaporating and drying. It is absolutely forbidden to leave the buffer solution in the HPLC columns for an overnight or longer period of time...

Samedi 07 septembre 2019

There are bubbles in the mobile phase, the pump is turned off, the pressure relief valve is opened, the purge button is turned on, the degas is cleaned, the bubbles are continuously ejected from the HPLC column, and the mobile phase enters the mobile phase. No matter how many times...

Vendredi 16 août 2019

NH2 HPLC columns refer to the chromatographic columns that use silica gel as matrix carrier to bond amino groups. They are usually used for the analysis of carbohydrate compounds, and the mobile phase is usually methanol, acetonitrile and buffers salt solution. - The cleaning method...

Lundi 12 août 2019

The system of an HPLC column is composed of a liquid, a reservoir, a pump, a sampler, a column, a detector and a recorder. - The packing material of HPLC columns - The packing material has high carbon content, small surface polarity, very low chemical purity and high surface separation...

Mercredi 31 juillet 2019

Sample vials play an important role in the experiments. We'd better not reuse them. If it has to be reused, the cleaning method is very important. It is noteworthy that vial pads must be replaced with new ones. Otherwise, the quantitative results will be affected. And here we will...

Mercredi 31 juillet 2019

Solid phase extraction (SPE), developed in the 1970s, can replace the traditional liquid-liquid extraction in many fields and has been applied more and more widely in the laboratory. The common solvent of SPE Hexane, isooctane, tetrahalide carbon, trihalomethane, dihalomethane, tetrahydrofuran...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Mardi 09 juillet 2019

The cleaning of sample vial is very important. Usually, according to the principle of glass instrument washing and the degree of pollution to choose cleaning methods, there is no fixed mode. The specific methods are as follows: Method one: 1. Dry the sample in the sample vial. 2...

Vendredi 05 juillet 2019

When the polarity of the stationary phase is greater than the polarity of the mobile phase, it can be called normal phase partition chromatography or simply normal phase chromatography. If the polarity of the stationary phase is less than the polarity of the mobile phase, it can be...