Neopentyl Glycol (NPG) Supplier in Malaysia
- Also known as
- NPG
- 2,2-Dimethyl-1,3-Propanediol
- Neopentanediol
Neopentyl glycol supplier for resin, coatings, plasticiser and lubricant buyers in Malaysia. Abbreviated NPG and named systematically as 2,2-dimethyl-1,3-propanediol (CAS 126-30-7), it is a white crystalline diol that is solid at ambient temperature and dissolves in water and lower alcohols.
Buyers choose between neopentyl glycol flake for manual charging, prill or granule for hopper and automated dosing, molten material for plants running heated transfer, and an aqueous solution at a stated strength. Purity, colour, water and hydroxyl limits are the values resin makers usually specify alongside the form.
Most demand comes from saturated polyester resins for coil, powder and can coatings, unsaturated polyester and gel-coat systems, polyester plasticisers, and synthetic ester base fluids for lubricants and refrigeration oils. Neopentyl glycol is not one of the liquid glycols, and it is not trimethylolpropane or pentaerythritol, which carry more hydroxyl groups and are ordered separately.
Send the required form, specification, quantity and delivery location with your enquiry. Packing, documentation and delivery arrangements are confirmed with the quotation.
- CAS number
- 126-30-7
- Formula
- C5H12O2
- Grade
- flake, prill, molten, high purity, aqueous solution
- Appearance
- white crystalline flake, prill or granule with a faint odour
Neopentyl Glycol grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Coatings grade neopentyl glycol flake | white crystalline flake | — | Saturated polyester resin cooks for coil, powder and can coatings, where the resin maker works to defined purity, colour and hydroxyl limits on the diol charge. | Bag packing, with the size confirmed with the quotation. |
| Neopentyl glycol prill or granule | white prill or granule | — | Free-flowing solid feed for plants that charge polyols through hoppers and automated dosing rather than tipping flake by hand. | Bag packing, with the size confirmed with the quotation. |
| Molten neopentyl glycol | molten liquid | — | Continuous esterification and resin production for buyers already equipped for heated storage and transfer of a molten polyol. | Heated transfer arrangements are confirmed with the quotation. |
| Aqueous neopentyl glycol solution | clear aqueous solution | — | Pumped dosing where a formulator would rather meter a liquid than melt or dissolve solid material at the mixer, with the strength stated on the order. | Drum or IBC, with the pack format confirmed with the quotation. |
How to buy neopentyl glycol from ChemTrade
Request a quote for neopentyl glycol
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | white crystalline flake, prill or granule according to form | — |
| CAS number | 126-30-7 | — |
| Molecular formula | C5H12O2 | — |
| Molecular weight | approximately 104 g/mol | — |
| Melting point | approximately 130 °C | — |
| Chemical character | symmetrical solid diol with two primary hydroxymethyl groups on a quaternary carbon, so the carbon between them carries no hydrogen | — |
| Solubility | soluble in water and in lower alcohols | — |
| Common grade checks | purity, hydroxyl value, water content and colour as required by the grade and the resin or ester process | — |
Neopentyl Glycol applications
Safety and handling
Store sealed in a cool, dry, well-ventilated place, keep bags off damp floors and away from strong oxidising agents, and control dust when handling flake or prill. Molten material needs the heated storage and transfer arrangements the receiving plant already operates. Follow the safety information supplied with the grade quoted.
Common questions about neopentyl glycol
Is NPG the same as neopentyl glycol?
Yes, the same material. NPG is the abbreviation the resin and lubricant trade uses, the systematic name is 2,2-dimethyl-1,3-propanediol, and neopentanediol is also seen. Any of those names on a specification refers to CAS 126-30-7.
Is neopentyl glycol the same as monoethylene glycol or diethylene glycol?
No. Neopentyl glycol is a solid diol that arrives as flake, prill or molten material, while monoethylene glycol and diethylene glycol are liquid glycols with different chemistry and handling. They are separate products, so order the glycol your formulation names by name.
Can neopentyl glycol be substituted for trimethylolpropane or pentaerythritol?
Not without a formulation review. Those are adjacent polyols with three and four hydroxyl groups respectively, and they build a different branch structure into a resin. Neopentyl glycol carries two hydroxyl groups, so the substitution changes the functionality of the cook.
Which form of neopentyl glycol should I request?
Flake suits manual charging, prill and granule suit hopper and automated dosing, molten material suits plants already running heated transfer, and an aqueous solution suits pumped dosing. State the receiving and charging setup with the enquiry so the form matches the plant.
Why do resin makers specify a neopentyl glycol backbone?
The carbon between the two hydroxymethyl groups carries no hydrogen, and resin chemists cite that structure when they describe neopentyl polyesters as holding up better against hydrolysis, heat and weathering than comparable straight-chain diols. Whether that translates to a given formulation is a matter for the resin trial.
What should be included in a neopentyl glycol enquiry?
Give the form, the purity and water or hydroxyl limits, the intended resin or ester application, the quantity per shipment and the delivery location. Add the packing and documentation you need so the quotation covers the complete requirement.