1 Introduction 1, 3-propylene glycol, English abbreviation 1,3-PDO, is a colorless, odorless viscous liquid, soluble in water, alcohol, ether and other organic solvents, mainly used in the synthesis of plasticizers, detergents, preservatives, emulsifiers, but also used in food, cosmetics and pharmaceutical industries, its most important use is as a polymer monomer synthesis of excellent polymer materials. 1, 3-propylene glycol can also be used to prepare other saturated polyesters, such as polypropylene glycol naphthalate (PTN) and copolyesters; In addition, it is an important monomer raw material for manufacturing a new polyester fiber with excellent performance, polypropylene terephthalate (PTT), which can replace ethylene glycol and butanediol to produce polyol polyester. Compared with PET(polyethylene terephthalate) and PBT(polybutylene terephthalate), PTT has better performance, both the high performance of PET and the ease of processing of PBT, and has broad application prospects, and is currently a hot spot in the development of new varieties of…

1, 3-propylene glycol (PDO) has received widespread attention due to its important application in many downstream consumer markets and the resulting growth in market demand. In 2022, the market attention of PDO has increased, which is closely related to its application in areas such as PTT polyester. As a new type of polyester material, PTT polyester has been widely used in the fields of decorative materials, textile fibers, clothing, engineering plastics and films, and is known as a new type of polyester fiber in the 21st century because of its soft, elastic, dirt resistance and other characteristics. With the increase of commercial application of PTT, the global market size is expected to continue to grow, thus driving the demand for this key monomer PDO.In addition, PDO, as an important chemical, is also widely used in pharmaceutical, cosmetic and polymer industries. In these fields, PDO plays an irreplaceable role as a…

Propylene glycol is a colorless viscous stable water-absorbing liquid, almost tasteless, odorless, flammable, and low toxic. It is miscible with water, ethanol and various organic solvents. Boiling point 187.3℃. Melting point -60℃. The relative density is 1.0381. Refractive index 1.4326. Surface tension (20℃)38mNm. Viscosity (20℃)60.5mPa-s. Specific heat capacity (20℃)2.49kj/(kg. ° C). Heat of vaporization (101.3kPa)7Ukj/kg. Heat of combustion (25℃)1824.OkJ/mol. Flash point (open cup) 99℃. Spontaneous ignition point 415.5℃. Critical temperature 352℃. Critical pressure 6.lMPa.Propylene glycol is a commonly used chemical, mainly used in the manufacture of cosmetics, food, medicine and other products. Its function is as a solvent, regulator, antifreeze and so on. The role of propylene glycol can be divided into the following aspects:1. Solvent: Propylene glycol can be used as a good solvent, can dissolve many organic and inorganic substances, often used in cosmetics, drugs and so on as a solvent.2. Regulator: Propylene glycol can be used as…

1, 3-propylene glycol Classification: Cosmetic grade and Industrial grade English alias: 1, 3-Dihydroxypropane; 1, 3 – PROPANDIOL; 1,3-PROPYLENE GLYCOL; AKOS 90317; AKOS BBS-00004418; PDO; PROPANE – 1, 3 – DIOL; TRIMETHYLENE GLYCOL; 1, 3 – Propylenediol; 2-(Hydroxymethyl)ethanol; 2-Deoxyglycerol; beta-Propylene glycol; beta-propyleneglycol; I,3-Propandiol; NSC 65426; nsc65426; omega-Propanediol; propane diol-1,3; Propanediol-(1,3)-(1,3-propylene glycol) Structure: HOCH2CH2CH2OH CASNo. : 504-63-2 Appearance and properties: colorless, odorless, salty, hygroscopic viscous liquid. (pure) Melting point (℃) : -27 Boiling point (℃) : 210-211 Relative density (water =1) : 1.05(25℃) Relative vapor density (air =1) : 2.6 Saturated vapor pressure (kPa) : 0.13(60℃) Flash point (° C) : 79Ignition temperature (℃) : 400 Solubility: miscible with water, can be miscible in ethanol, ether.Main Uses: Used as solvent for organic synthesis. 1, 3-propylene glycol (Propan-1,3-diol), is a chemical compound, the molecular formula is C3H802, the molecular weight is 76.10, colorless transparent viscous liquid. It can be used for the synthesis…