2,2-Dimethyl-1,3-propanediol

Chemical Name: Neopentyl Glycol

CAS Registry Number: 126-30-7

Molecular Formula: C₅H₁₂O₂

Alternative Synonym: 2,2-Dimethyl-1,3-propanediol

Appearance: White crystalline solid

HS Code: 29053990

Sample Availability: In stock for testing

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

Products Description of 2,2-Dimethyl-1,3-propanediolCAS# 126-30-7
This product is an odorless white crystal with notable hygroscopic characteristics. It dissolves readily in water, low-carbon alcohols, short-chain ketones, ethers and aromatic solvents.

Supplementary conventional physical indicators for industrial reference:

Melting Point: 129~131°C

Boiling Point: 208°C

Specific Density: 1.06 g/cm³

Derived compounds from neopentyl glycol feature prominent resistance to water damage, chemical corrosion and outdoor weather aging.

2,2-Dimethyl-1,3-propanediol

Parameters

PropertyValue
Melting point126-128 °C
Boiling point208 °C
density1.06
vapor density3.6 (vs air)
vapor pressure<0.8 mm Hg ( 20 °C)
refractive index1.4406 (estimate)
Fp107 °C
storage temp.Inert atmosphere,Room Temperature
solubility830g/l
pka14.57±0.10(Predicted)
formCrystalline Chunks
colorWhite
explosive limit1.34%, 149°F
Water Solubility830 g/L (20 ºC)
SensitiveHygroscopic
Merck14,6458
BRN605291
Stability:Stable. Incompatible with strong oxidizing agents, acetic anhydride, acid chlorides, moisture. Combustible.
LogP-0.15 at 25℃
CAS DataBase Reference126-30-7(CAS DataBase Reference)
NIST Chemistry Reference1,3-Propanediol, 2,2-dimethyl-(126-30-7)
EPA Substance Registry SystemNeopentyl glycol (126-30-7)

Safety Information

ItemDetails
Hazard CodesXi
Risk Statements36/37/38-36-41
Safety Statements26-36-39
WGK Germany1
RTECSTY5775000
F3
Autoignition Temperature750 °F
TSCAYes
HS Code29053990
Hazardous Substances Data126-30-7(Hazardous Substances Data)
Toxicityrat,LCLo,inhalation,39000ppm/6H (39000ppm),Kodak Company Reports. Vol. 21MAY1971,

Product Application of 2,2-Dimethyl-1,3-propanediolCAS# 126-30-7

Neopentyl glycol is a versatile polyhydric alcohol raw material widely deployed across multiple downstream industries:

  1. Resin Production: Serves as core plasticizer feedstock for manufacturing unsaturated polyester resin, solvent-free alkyd resin, polyurethane foam and polyurethane elastomer.
  2. Fine Chemical & Lubricant Industry: Used as functional additive for premium lubricant goods and key intermediate for varied fine chemical synthesis.
  3. Petrochemical Separation: Works as high-performance selective solvent to separate aromatic hydrocarbons from cycloalkane components.
  4. Coating Manufacturing: Primary raw material for amino baking varnish; the finished coating maintains stable gloss and avoids yellowing thanks to the raw material’s superior anti-water, anti-chemical and weather-resistant traits.
  5. Agrochemical & Auxiliary Sector: Applied as synthetic starting material for corrosion inhibitors, chemical stabilizers and pesticide intermediates.


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