1,3-Propanediol (PDO) manufacturer

Application areas

Application Notes

1. Food and beverage industry

As a food additive, humectant, and solvent, it can enhance the texture of food and keep it moist.

It is widely used in food processing, such as in the production of candy, bread, and biscuits, and in the production of seasonings and flavorings.

2.Industrial manufacturing

As a coolant and antifreeze, it lowers the freezing point of the liquid and prevents the cooling system from freezing. It is commonly used in automobiles, industrial equipment, and air conditioning systems to ensure that the liquid can still flow under cold conditions.

3. Pharmaceutical manufacturing

As a carrier for drugs and vaccines, propylene glycol stabilizes and extends the shelf life of medications. In pharmaceutical processes, it serves as a solvent and diluent, and also plays a role in regulating temperature and humidity in pharmaceutical products.

4. Daily chemical industry

It possesses moisturizing and solvent properties, making cosmetics easier to apply and absorb. It can be added to skincare, cosmetic, and personal care products such as lotions, creams, and lipsticks.

Indicator range

GB29216

CP

USP

EP

Senses

Colorless, transparent, viscous liquid

Colorless, clear, viscous liquid

Colorless, transparent, liquid

Colorless, transparent, liquid

Propylene glycol content

≥ 99.5

/

≥ 99.5

/

Moisture, %

≤ 0.2

≤ 0.2

≤ 0.2

≤ 0.2

Initial boiling point (°C)

≥ 185

/

/

/

Dry point (°C)

≤ 189

/

/

/

Burning residue, %

≤ 0.007

≤ 2.5mg

≤ 3.5mg

≤ 0.01

Specific gravity (25/25℃)

1.035-1.037

1.035-1.037

1.035-1.037

1.035-1.037

Sulfate, ppm

/

≤ 60

≤ 60

/

Chloride, ppm

/

≤ 70

≤ 70

/

acid value

Through the experiment

≤ 0.5-0.01 mol/L NaOH

≤0.2-0.1 mol/L NaOH

Through the experiment