Mono Propylene Glycol USP/IND
RXSOL-19-1586-210Application & Usage
It is used to absorb extra water and maintain moisture in certain medicines, cosmetics, or food products. It is a solvent for food colors and flavors, and in the paint and plastics industries. Propylene glycol is also used to create artificial smoke or fog used in fire-fighting training and in theatrical productions.
Procedure
According to the Material Safety Data Sheet on propylene glycol, the chemical is a strong skin irritant, and has been implicated in contact dermatitis.
Technical Specification
Description: Propylene Glycol USP
|
Test Description |
Specification Limits Min. Max. |
Unit of Measure |
Test Method |
|
|
Propylene Glycol, on a Dry basis |
99.5 |
%(w/w) |
HOC 0540 |
|
|
Acidity as acetic acid |
0.002 |
%(w/w) |
HOC 0210 |
|
|
Chlorides |
0.5 |
ppm |
HOC 0221 |
|
|
Colour, Pt-Co |
10 |
APHA Colour |
HOC 0641 |
|
|
Heavy Metals as Pb |
5 |
ppm |
HOC 0274 |
|
|
Iron |
0.5 |
ppm |
HOC 0290 |
|
|
Water |
0.2 |
%(w/w) |
HOC 0316 |
|
|
Arsenic as As |
1 |
HOC 0242 |
||
|
Distillation @ 760 mm Hg |
||||
|
Initial Boiling Point |
186 |
oC |
HOC 0154 |
|
|
Drying Point |
189 |
oC |
HOC 0154 |
|
|
Residue on Ignition |
0 |
0.005 |
%(w/w) |
HOC 0140 |
|
Specific Gravity@20/20 oC |
1.0377 |
1.0389 |
HOC 0132 |
|
|
Specific Gravity@25/25 oC |
1.0352 |
1.0364 |
HOC 0132 |
|
|
Sulphate |
0 |
0.006 |
%(w/w) |
HOC 0225 |
Notes
Propylene glycol is tolerated well by the skin and shouldn't cause redness or irritation. Propylene glycol is a penetration-enhancing humectant.
Propylene Glycol USP is a widely used ingredient in pharmaceutical, food, cosmetic, personal care, flavors and animal feed applications; an overview of typical uses of Propylene Glycol USP as below.It must be emphasized that it is the user’s responsibility to consult area and country-specific regulations for details of approved use.
-
Pharmaceuticals - Solvent for active ingredients in oral, and topical products.
-
Cosmetics & Personal Care - Solvent, coupling agent, carrier, emulsion stabilizer, softening agent, viscosity modifier and humectant in many types of cosmetics and personal care products such as skincare, sun care, shampoo, bath/shower products, toothpastes, mouthwashes, shaving products and baby care products.
-
Flavors & Fragrances - Solvent and extraction solvent of flavors and fragrances for applications in food, beverages, perfumes and cosmetics.
-
Food - Various applications as a direct food additive (E 1520) such as a carrier or carrier solvent for colors, emulsifiers, antioxidants and enzymes (in Europe with maximum 1 g/kg in human foodstuffs), and humectant and stabilizer in fruits, vegetables and bakery goods (except in Europe). Propylene Glycol USP is also applied in indirect contact food applications, such as a low temperature heat-transfer fluid in the brewing, dairy and ice cream industries and for food storage facilities, an equipment cleaner fluid or a solvent for printing inks.
- Pet foods & Animal Feed - Humectant, emulsifier, preservative, solvent foradditives, energy source and aid for prevention of ketosis (acetonemia) in dairycattle. In EMEA a specific tailor made Propylene Glycol Animal Feed is offered forthis application.
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