2-Methyl-1,3-propanediol - Materials / Alfa Chemistry

NAVIGATION

2-Methyl-1,3-propanediol

PRICE INQUIRY

Catalog Number

ACMA00016793

Product Name

2-Methyl-1,3-propanediol

Category

Polymers

Description

Liquid

IUPAC Name

2-methylpropane-1,3-diol

Molecular Weight

90.12g/mol

Molecular Formula

C4H10O2

Canonical SMILES

CC(CO)CO

InChI

InChI=1S/C4H10O2/c1-4(2-5)3-6/h4-6H,2-3H2,1H3

InChI Key

QWGRWMMWNDWRQN-UHFFFAOYSA-N

Boiling Point

195.0 °C;211 °C

Melting Point

-91.0 °C;-91 °C

Flash Point

127 °C (261 °F) - closed cup

Density

1.015 g/ cu cm at 25 °C

Solubility

In water, greater than or equal to 3000 mg/L at 25 °C;In water, 1.363X10+5 mg/L at 25 °C (est)

Application

2-Methyl-1,3-propanediol (MPD) is a versatile chemical compound employed in a range of applications due to its unique properties, stemming from its branched and irregular molecular structure. This structure contributes to the formation of noncrystalline resins that enhance the performance of various polyesters used in solvent- and waterborne coatings, providing them with lower viscosity, improved processability, flexibility, weatherability, and toughness compared to traditional alternatives like neopentyl glycol. MPD is particularly valuable in developing paints with low volatile organic compound (VOC) content, serving as an essential component in two-component polyurethane and coil coatings. Beyond paints, MPD is integral in producing glass-fiber-reinforced unsaturated polyesters and gel coats. In the modification of polyethylene terephthalate (PET), it enhances properties such as dye uptake in fibers and clarity, toughness, elongation, and shrinkage resistance in films. Additionally, MPD finds application in the formulation of plasticizers, elastomers, adhesives, cosmetics, and personal care products, making it a critical ingredient in both industrial and consumer markets.

Color/Form

Liquid;Clear, colorless liquid

Complexity

24.7

Covalently-Bonded Unit Count

EC Number

412-350-5;606-809-0;928-935-8

Exact Mass

90.06808g/mol

Formal Charge

Heavy Atom Count

Log P

0.24 (LogP);log Kow = 0.24 at 20 °C

MeSH Entry Terms

2-methyl-1,3-propanediol

Monoisotopic Mass

90.06808g/mol

Odor

Little or no odor

Other Experimental

log Kow = -0.6 at 25 °C;Henry's Law constant = 2.3X10-7 atm-cu m/mole at 25 °C (est);Hydroxyl radical reaction rate constant = 1.1X10-11 cu cm/molecule-sec at 25 °C (est)

Refractive Index

Index of refraction: 1.4450 at 20 °C/D

Rotatable Bond Count

Stability

Stable under recommended storage conditions.

UNII

N8F53B3R4R

Vapor Density

3.11

Vapor Pressure

0.02 mmHg;2.1X10-2 mm Hg at 25 °C

XLogP3