Products Description
DPGME is a colorless liquid with a mild odor. It has a molecular weight of 148.23 and a specific gravity of 0.95 relative to water. Its boiling point is 180°C, while its freezing/melting point is approximately −80°C. The vapor pressure is 0.5 mmHg at 20°C, and its flash point is 74.6°C (closed-cup). The autoignition temperature is 270°C. Its lower and upper explosive limits (LEL and UEL) are 1.3% and 10.4%, respectively. According to the NFPA 704 hazard rating system, DPGME has a health hazard rating of 2, a flammability rating of 2, and a reactivity rating of 1. It is highly soluble in water.
Chemical Properties
Melting point | -80°C |
Boiling point | 90-91 °C12 mm Hg(lit.) |
density | 0.954 g/mL at 20 °C(lit.) |
vapor pressure | 0.4 mm Hg ( 25 °C) |
refractive index | n |
Fp | 166 °F |
storage temp. | Store below +30°C. |
Water Solubility | Completely miscible in water |
solubility | Chloroform (Slightly), Methanol (Slightly) |
form | Colorless liquid |
color | Colorless to Almost colorless |
PH | 6-7 (200g/l, H2O, 20℃) |
explosive limit | 1.1-14%(V) |
Merck | 14,3344 |
Henry's Law Constant | 8.6×103 mol/(m3Pa) at 25℃, Bartelt-Hunt et al. (2008) |
Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
Cosmetics Ingredients Functions | SOLVENT |
InChI | 1S/C7H16O3/c1-6(4-8)10-5-7(2)9-3/h6-8H,4-5H2,1-3H3 |
InChIKey | QCAHUFWKIQLBNB-UHFFFAOYSA-N |
SMILES | O(C(CO)C)CC(OC)C |
LogP | 0.004 at 25℃ |
Surface tension | 28.41mN/m at 20°C |
CAS DataBase Reference | 34590-94-8(CAS DataBase Reference) |
NIST Chemistry Reference | Dipropylene glycol monomethyl ether(34590-94-8) |
EPA Substance Registry System | Dipropylene glycol monomethyl ether (34590-94-8) |
Safety Information
Safety Statements | 23-24/25 |
RIDADR | NA 1993 / PGIII |
OEB | A |
OEL | TWA: 100 ppm (600 mg/m3), STEL: 150 ppm (900 mg/m3) [skin] |
WGK Germany | 1 |
RTECS | JM1575000 |
Autoignition Temperature | 205 °C DIN 51794 |
TSCA | TSCA listed |
HS Code | 29094919 |
Storage Class | 10 - Combustible liquids |
Hazardous Substances Data | 34590-94-8(Hazardous Substances Data) |
Toxicity | LD50 orally in rats, dermally in rabbits: 5.66, 10.0 (ml/kg) (Smyth) |
IDLA | 600 ppm |
Product Applications
Dipropylene glycol methyl ether is widely used as a solvent for nitrocellulose, ethyl cellulose, polyvinyl acetate, paints, dyes, printing inks, and enamels. It is also used as a component in brake fluids and as a cleaning solvent for cutting oils and machining fluids. In water-based coatings, it serves as an active solvent and coupling agent, often in combination with other solvents.
Additionally, dipropylene glycol methyl ether is used as a solvent and coupling agent in household and industrial cleaning products, including degreasers, paint removers, metal cleaners, and hard-surface cleaners. It can also function as a solvent and coupling agent in solvent-based screen-printing inks and in the dyeing of fabrics with vat dyes. In cosmetic formulations, it serves as a coupling agent and skin-conditioning ingredient. Other applications include acting as a stabilizer in agricultural insecticide formulations and as a coalescing agent in floor polish products.
