Tag: Monomers

Butyl Glycol

Posted on by Guilherme Campos

Butyl Glycol

CAS: 111-76-2

Butyl glycol also known as BG, 2-butoxyethanol, glycol monobutyl ether and ethylene glycol monobutyl ether is a clear, colourless, oily liquid with a characteristic, but mild, odour with the molecular formula C6H14O2, CAS: 111-76-2.  It is miscible with water and with common organic solvents. 

Butyl Glycol

Butyl Glycol Chemical Structure Composition.

Production

Butyl glycol is produced by reacting ethylene oxide and normal butanol (n-butanol) using a catalyst.  If the ratio of ethylene oxide to n-butanol is greater than one then di- and tri- ethylene glycol monoethers are also produced.

World production is estimated at between 300-500 KT per annum.

It has a specific gravity of 0.9 and a flash point of 60 °C

Uses

Butyl glycol usage is dominated by the paint industry which consumes approximately 75 % of all the BG produced.  This is because it is a low volatility solvent and it can therefore both extend the drying times of coatings and improve their flow.

Other applications include use as a solvent in printing inks and textile dyes and as a component of hydraulic fluids.  It is also a component of drilling and cutting oils and is a major component of Corexit 9527, which is an oil spill dispersant product.

It is also a chemical intermediate and, as such, is a starting material in the production of butyl glycol acetate which is, itself, an excellent solvent.  It is also a starting material in the production of plasticisers by the reaction of phthalic anhydride. Butyl glycol is also something that is used regularly in most households as it is a component of many home cleaning products.  It provides very good cleaning power for domestic cleaning products and also provides the characteristic odour that we associate with many of these products.  It also plays the same role in some industrial and commercial surface cleaners.

Arpadis is one of the largest chemical distributor in Europe.
Arpadis is handling the storage, transport, export & import formalities of Butyl Glycol globally.

Butyl Di Glycol

Posted on by Guilherme Campos

Butyl Di Glycol

CAS: 112-34-5

Butyl di glycol also known as BDG, butyl dioxitol and diethylene glycol monobutyl ether, is a colourless, clear liquid with a faint characteristic odour, and molecular formula C8H18O3, CAS: 112-34-5. It has a flash point of 105 °C and a specific gravity of 0.955.

It is soluble in water and miscible with many common solvents, and also has low volatility and a high boiling point.  These are the factors that make butyl di glycol most useful in the paint industry.

Production

Butyl di glycol is one of the co-products formed when ethylene oxide is reacted with n-butanol using a catalyst.

Uses

Butyl di glycol is most commonly used in the coatings and paint industries where its low volatility and high boiling point have seen it widely accepted as a flow promoter for baking finishes such as melamine, urea, phenol, or epoxy resin composites.  It is also widely used in stove enamels as it has a high evaporation number which means that the enamel properties can be improved without it affecting the drying time.  It also has a role in air-drying paints as it increases “brushability”.

Butyl di glycol is also found in the printing industry where it is a solvent for printing inks, and is also a starting material in the production of butyl diglycol acetate.

Arpadis is one of the largest chemical distributor in Europe.

Arpadis is handling the storage, transport, export & import formalities of Butyl di glycol globally.

Vinyl acetate monomer

Posted on by Guilherme Campos

Vinyl acetate monomer

CAS: 108-05-4

Vinyl Acetate Monomer also known as VAM, acetic acid ethenyl ester, acetic acid ethylene ether, acetoxyethene, 1-acetoxyethylene, ethenyl ethanoate, ethenyl acetate, and acetic acid vinyl ester with the molecular formula C4H6O2. It is a colourless liquid with a pungent and typical odour. 

Vinyl acetate monomer

Vinyl Acetate Monomer Chemical Structure Composition.

Production

Vinyl acetate monomer VAM is produced starting from the reaction of ethylene and acetic acid with oxygen.  The VAM is recovered by condensation and scrubbing and is purified by distillation. 

VAM has a specific gravity of 0.933, a flash point of -8° C and is highly flammable. 

Uses

Approximately 75% of all the VAM produced in the world is used to produce polyvinyl acetate (PVAc) and polyvinyl alcohol (PVA). 

VAM is a key ingredient in emulsion polymers, resin, and intermediates used in paints, adhesive, coatings, textiles, wire and cable polyethylene compounds, laminated safety glass (PVB), packaging (Ethylene-vinyl acetate EVA), automotive plastic fuel tanks and acrylic fibres.

Polyvinyl acetate is used in paints, adhesives, paper coatings and textile treatments, while polyvinyl alcohol is used in the production of adhesives, coatings, and water soluble packaging, and textile warp sizing.

VAM is also used to make polyvinyl butyral (PVB) which is used in laminated safety glass for cars and buildings. 

Arpadis is one of the largest chemical distributor in Europe.

Arpadis is handling the storage, transport, export & import formalities of Vinyl Acetate Monomer globally.

Methyl Methacrylate

Posted on by Guilherme Campos

Methyl Methacrylate

CAS: 80-62-6

Methyl Methacrylate also known as MMA, 2-methylmethacrylate, or methyl 2-methyl propenoate is an ester of methacrylic acid with the molecular formula C5H8O2 , CAS: 80-62-6. It is a clear, colourless liquid that has an acrid odour and is not known to occur naturally.  It is insoluble in water, but is soluble in most organic solvents. It is volatile and flammable.

Methyl Methacrylate Chemical Structure Composition.

Production

The main route of MMA production is by reacting hydrogen cyanide with acetone to form acetone cyanohydrin.  Acetone cyanohydrin is then reacted with concentrated sulphuric acid to produce methacrylate sulfate.  This is then reacted with methanol and water to form methyl methacrylate. 

During production a highly toxic hydrogen cyanide liquid is produced.

It is supplied with an inhibitor as autopolymerisation can occur, especially in light.

MMA has a specific gravity of 0.939 and its highly flammable with a flash point of 10°C.

Uses

Methyl methacrylate is an important chemical as it is the monomer for polymethyl methacrylate (PMMA) polymers and copolymers. 

MMA is also polymerised to form lubricant viscosity modifiers, dispersions,  molding/extrusion powder, and coatings.  These are then utilised in the production of acrylic surface and paper coatings, adhesives, sealants, leather and paper coating, inks, textile finishes, latex paints, and lacquer and enamel resins. clear plastics (Plexiglass) and acrylic sheets. 

It could also be used in the impregnation of concrete as it makes the concrete water repellent.  When MMA is replaced styrene in unsaturated polyester resins it gives better water resistance and a longer life to the final products.

MMA polymers have also medicine and dentistry application.

Arpadis is one of the largest chemical distributor in Europe.

Arpadis is handling the storage, transport, export & import formalities of Methyl Methacrylate globally.

 

Acrylics Monomers

Posted on by best4u

Acrylics Monomers

Other Monomers