Dipropylene glycol CAS 110-98-5 (also known as dipropylene glycol in English), also known as dipropylene glycol, dipropylene glycol, 4-Oxaheptane-2,6-diol, 1,1 ‘- Oxydi-2-propanol, 2-Hydroxypropyl ether, 2,2′ – Dihydroxydipropyl ether, also known as DPG. Dipropylene glycol is a odorless, colorless, sweet, water-soluble, and hygroscopic liquid at room temperature. Soluble in water and toluene, soluble in methanol and ether, with a spicy sweet taste and no corrosiveness. Very little skin irritation and low toxicity. Flammable when exposed to open flames or high heat. It can form an explosive mixture with air. It is suitable for essence, spices, cosmetics and other uses that are sensitive to odor. The molecular formula is C6H14O3.

Chinese name: Dipropylene glycol

Foreign name: Dipropylene Glycol

Chemical formula: C6H14O3

Molecular weight: 134.17

physical property

【 Appearance 】 Dipropylene glycol is a odorless, colorless, water-soluble, and hygroscopic liquid at room temperature, with a spicy and sweet taste.

Boiling point (101.3 kPa) (℃) 295

Melting point (℃) -40

Flash point: ℃ (closed type) 118

[Ignition temperature] (℃) 310

Density: g/cm3 (20 ℃) 1.0252

Refractive Index nD251.439

[Steam pressure] kPa (℃) 0.13 (74)

[Viscosity] mPa. s (20 ℃): 107

[Surface tension] mN/m (25 ℃): 32.0

[Upper explosion limit]% (V/V) 12.7

[Lower explosive limit]% (V/V) 2.9

【 Solubility 】 Dipropylene glycol is a water-soluble and hygroscopic viscous liquid, soluble in water and toluene, and miscible in methanol and ether.

Stability

Chemical property

[CAS login number] 110-98-5

[EINECS login number] 246-770-3

【 Molecular Weight 】 134.17

【 Molecular formula and structural formula 】 The molecular formula is C6H14O3, and the chemical structural formula is as follows:

Common chemical reactions can occur such as esterification, etherification, acetalization, halogenation, etc. If it interacts with acid anhydrides, it can generate esters, and if it interacts with alkyl sulfates and halogenated hydrocarbons, it can generate ethers.

【 Forbidden compound 】 Strong oxidant.

Polymerization hazard: No polymerization hazard.

Main purpose

1) Dipropylene glycol is the most ideal solvent for many essence and cosmetics. This raw material has good water, oil and hydrocarbon co solubility, and has a mild odor, minimal skin irritation, and low toxicity. The distribution of isomers is uniform and consistent, with excellent quality;

2) Dipropylene glycol can also be used as a coupling agent and moisturizer in various cosmetic applications. In the field of perfume, the proportion of dipropylene glycol used exceeds 50%. In other application fields, the proportion of dipropylene glycol used is generally within 10% (by weight). Some specific product application fields include: hair curling liquid, skin cleaning liquid (cold cream, bath gel, bath liquid and skin care liquid) deodorant, face, hand and body skin care products, moisturizing skin care products and lipstick, etc;

3) Dipropylene glycol is also used in the production of unsaturated and saturated resins, and the resins produced by it have superior softness, crack resistance, and weather resistance. The product has long-term resistance to yellowing and denaturation.

4) Used as cellulose acetate; Nitrocellulose; Shellac varnish; A solvent for castor oil. It can also be used to make plasticizers, fumigants, synthetic detergents, etc.

Packaging, storage, and transportation

Iron bucket packaging, 215KG/barrel; Transport according to general chemicals; Store in a cool and ventilated warehouse. Keep away from sparks and heat sources. It should be stored separately from oxidants and avoid mixed storage and transportation. Corresponding types and quantities of fire-fighting equipment should be equipped. The storage area should be equipped with emergency response equipment for leaks and suitable storage materials.

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