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"Dowex 50" is a type of ion-exchange resin, called a strongly acidic cation exchanger, used for ion-exchange chromatography. It is useful for swapping a metal cation for a proton (eg. Na+ for H+) or one metal cation for another (eg. K+ for Na+). This can be an important way for purifying amino acids, carboxylate salts or removing unwanted metal ions from water solutions.
What else can I help you with?
Name of a colourless crystalline compound used in making resins?
One example of a colorless crystalline compound used in making resins is maleic anhydride. It is a cyclic compound that is widely used in the production of resins such as unsaturated polyester resins and alkyd resins due to its ability to undergo polymerization reactions.
What is the solvent for epoxy phenolic resins?
The solvent commonly used for epoxy phenolic resins is a mixture of aromatic hydrocarbons, such as xylene or toluene. These solvents help to dissolve the resins and are typically used for cleaning equipment or thinning the resin for application.
What is the difference between an aromatic resin and an aliphatic resin?
Aromatic resins contain aromatic rings in their chemical structure, while aliphatic resins do not. Aromatic resins generally have higher thermal stability and UV resistance compared to aliphatic resins, which are known for their flexibility and compatibility with a wide range of materials.
Difference between novolacs and resol resins?
Novolacs are thermosetting resins that are usually rigid and have high heat resistance. They require a curing agent to crosslink, such as formaldehyde. Resol resins are also thermosetting resins but are more flexible and have good chemical resistance. They self-cure at higher temperatures, without the need for an additional curing agent.
Is acetone a resin?
No - it is a solvent that will dissolve resins
What are the active residues in Dowex 2 and Dowex 50?
In dowex 2 the active part is -N(CH3)2(C2H4OH)(+) (all three groups linked with nitrogen atom, of course - I don't know if this formula is clear) and dowex 50 is simply -SO3(-)
What is Dowex 50?
Dowex 50 is a strong acid cation exchange resin commonly used for water softening and purification processes. It has a high capacity for removing calcium and magnesium ions from water, making it effective in reducing water hardness. Dowex 50 is widely used in industrial and household water treatment systems.
lon Exchange Resins?
lon Exchange Resins
What are classifications of resins?
Resins can be classified into several categories based on their origin and chemical structure. The primary classifications are natural resins, such as rosin and gum, which are derived from plant exudates, and synthetic resins, which are man-made and include types like thermosetting resins (e.g., epoxy and phenolic) and thermoplastic resins (e.g., polyethylene and polystyrene). Additionally, resins can be categorized by their application, such as industrial, decorative, and adhesive resins, each serving specific purposes in various industries.
What is the SIC Code for Plastic Materials and Resins?
SIC 2821 applies to PLASTIC MATERIALS AND RESINS.
What has the author David F Gould written?
David F. Gould has written: 'Phenolic resins' -- subject(s): Gums and resins, Synthetic, Synthetic Gums and resins
Name of a colourless crystalline compound used in making resins?
One example of a colorless crystalline compound used in making resins is maleic anhydride. It is a cyclic compound that is widely used in the production of resins such as unsaturated polyester resins and alkyd resins due to its ability to undergo polymerization reactions.
What are insect resins?
lacs
Synthetic resins method forremoval of permanent hardness ofwater?
A method for blowing synthetic resins as a fuel into a furnace comprising: processing synthetic resins consisting essentially of film shaped synthetic resins by melting or semi-melting the synthetic resins by heat to produce granular synthetic resins having a bulk density of at least 0.3 and angle of repose of up to 40 degrees; pneumatically feeding the granular synthetic resins from the processing; and blowing the pneumatically fed granular synthetic resins into a furnac
What are aromatic resins?
balsam; myrrh
What is methacrolein found in?
resins and polymers.
What is epoxy resins in briefly?
Epoxy resins are advanced thermosetting resins used in FRP composites. Epoxy equivalent of an epoxy sample is determined by a standard titration method [6] using hydrogen bromide solution in acetic acid.
