โพรพิลีนไกลคอล, พีจี, Propylene Glycol, PG

โมโนโพรพิลีนไกลคอล, เอ็มพีจี, Monopropylene Glycol, MPG 

เป็นตัวทำละลาย (Solvent) สามารถละลายในน้ำ และแอลกอฮอล์ ใช้เป็นสารละลายในกลิ่นผสมอาหาร (Flavor) และหัวเชื้อกลิ่นต่างๆ

หรือ สารเพิ่มอากาศในแป้งที่นวดให้เข้ากันของขนมปัง ใช้เป็นสารเพิ่ม ความชุ่มชื้น

(moisturiser) ในเครื่องสำอางค์ และใช้เป็นสาร emulsifier และ disperser สำหรับผลิตภัณฑ์ในอุตสาหกรรมยา และอาหาร, รวมทั้งอุตสาหกรรมต่างๆอย่างกว้างขวาง

1.         ใช้เป็นตัวทำละลาย

หรือ เจือจางน้ำหอม ในผลิตภัณฑ์เครื่องสำอาง หรือใช้เป็นตัวทำละลาย

หัวกลิ่นน้ำหอมเข้มข้น และในอุตสาหกรรมการผลิตอาหาร

2.         ใช้เป็นตัวทำละลายวิตามิน

ชนิดที่ละลายในน้ำ

3.         ใช้เป็นสารกันเสียในเครื่องสำอางที่อยู่ในรูปของครีม และอิมัลชั่น

4.         ใช้เป็นตัวทำละลายสำหรับอุตสาหกรรมผลิตน้ำยาบ้วนปาก

ยาสีฟัน ลิปติก ครีมทาผิว แชมพู

5.         อุตสาหกรรมต่างๆทั่วไป

โพรไพลีน ไกลคอล, พีจี, Monopropylene glycol, MPG, โมโนโพรพิลลีน ไกลคอล, มีเกรดอุตสาหกรรมและ USP grade ใช้กับพวกอาหารได้ Propylene Glycol สารเคมีใช้ป้องกันการจับตัวเป็นของแข็ง ในภาคอุตสาหกรรมนำไปใช้ในการทำละลาย

อาทิ สีและพลาสติก แต่นำมาใช้กับเครื่องสำอางในกลุ่มมอยส์เจอไรเซอร์

ทำหน้าที่เก็บรักษาความชุ่มชื่นในเครื่องสำอาง Prolylene Glycol เป็นสารช่วยหล่อลื่น ทำให้เนื้อครีม หรือเนื้อเจลมีความลื่น

Propylene glycol is a

synthetic liquid substance that absorbs water. Propylene glycol is also used to

make polyester compounds, and as a base for deicing solutions. Propylene glycol

is used by the chemical, food, and pharmaceutical industries as an antifreeze

when leakage might lead to contact with food. The Food and Drug Administration

(FDA) has classified propylene glycol as an additive that is ?generally

recognized as safe? for use in food. 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. Other names for propylene

glycol are 1,2-dihydroxypropane, 1,2-propanediol, methyl glycol, and trimethyl

glycol. Propylene glycol is clear, colorless, slightly syrupy liquid at room

temperature. It may exist in air in the vapor form, although propylene glycol

must be heated or briskly shaken to produce a vapor. Propylene glycol is

practically odorless and tasteless.

Propylene glycol, also called 1,2-propanediol or propane-1,2-diol, is an organic compound (a diol or double alcohol) with formula C3H8O2. It is a colorless, nearly odorless,

clear, viscous liquid with a faintly sweet taste, hygroscopic and miscible with

water, acetone, and chloroform. The compound is sometimes called ?-propylene glycol to distinguish it from the

isomer propane-1,3-diol (?-propylene glycol). 45% of propylene glycol

produced is used as chemical feedstock for the production of unsaturated

polyester resins. In this regard, propylene glycol reacts with a mixture of

unsaturated maleic anhydride and isophthalic acid to give a copolymer. This

partially unsaturated polymer undergoes further crosslinking to yield thermoset

plastics. Related to this application, propylene glycol reacts with propylene

oxide to give oligomers and polymers that are used to produce polyurethanes.

Propylene glycol is considered generally recognized as safe (GRAS) by the U.S.

Food and Drug Administration, and it is used as an humectant (E1520),

solvent, and preservative in food and for tobacco products, as well as being

one of the major ingredients of the liquid used in electronic cigarettes. It is

also used in pharmaceutical and personal care products. Propylene glycol is a

solvent in many pharmaceuticals, including oral, injectable and topical

formulations, such as for diazepam and lorazepam that are insoluble in water,

use propylene glycol as a solvent in their clinical, injectable forms. Like

ethylene glycol, propylene glycol is able to lower the freezing point of water,

and so it is used as aircraft de-icing fluid. Water-propylene glycol mixtures

dyed pink to indicate the mixture is relatively nontoxic are sold under the

name of RV or marine antifreeze. It is also used to winterize a vacant

structure.[9] The eutectic composition/temperature is 60:40 propylene glycol:water/-60?C.[10][11] The -50?F/-45?C commercial product is, however, water rich; a typical formulation is 40:60. Propylene glycol is a minor ingredient in the oil

dispersant Corexit, used in great quantities during the Deepwater Horizon oil

spill.

Propylene Glycol (PG) USP/EP is a

pharmaceutical grade of Monopropylene Glycols (PG or MPG) with a specified

purity greater than 99.8%.

PG USP/EP is tested for compliance

with specifications of:

?          United

States Pharmacopeia (USP)

?          European

Pharmacopoeia (EP)

?          Japanese

Pharmacopoeia (JP)

?          Food

Chemical Codex (FCC)

It also complies with:

?          Brazilian

Pharmacopoeia (FB)

?          other

pharmaceutical, cosmetic and food regulations in the global markets where it is

sold 

It is listed by the Personal Care

Products Council?? as an approved ingredient in cosmetics, and its use is

reviewed by the Cosmetic Ingredient Review (CIR). PG USP/EP is Kosher and

complies with Halal requirements.

PG USP/EP is an important

ingredient for a multitude of uses, including:

?          Solvent

for aromatics in the flavor-concentrate industry

?          Wetting

agent for natural gums

?          Ingredient

in the compounding of citrus and other emulsified flavors

?          Solvent

in elixirs and pharmaceutical preparations

?          Solvent

and coupling agent in the formulation of sun screen, lotion, shampoos, shaving

creams and other similar products

?          Emulsifier

in cosmetic and pharmaceutical creams

?          Ingredient

for low-temperature heat-transfer fluids involving indirect food contact, such

as brewing and dairy uses, as well as refrigerated grocery display cases

?          Very

effective humectant, preservative and stabilizer in semi-moist pet food (with

the exception of cat food), bakery goods, food flavorings and salad dressings

Applications 

Heat Transfer Fluids

Fragrance, Cosmetics and Personal

Care

Food and Flavorings

Pet Food/Animal Feed

Pharmaceutical

Other Applications 

Heat Transfer Fluids, with a

suitable inhibitor package, makes an excellent choice for use as a heat

transfer fluid in applications where contact with potable water, food or

beverages might occur. Its low toxicity, low freezing point and high boiling

point make it uniquely applicable for use in such applications. 

Fragrance, Cosmetics and Personal

Care

?          Solvents,

carriers, emollients, dispersants, coupling agents and co-emulsifiers, emulsion

stabilizers or viscosity modifiers

?          Humectants

due to their hygroscopic nature and ability to attract and hold water

?          Preservatives

due to inherent antimicrobial activity against a wide range of bacterial and

fungal species

propylene glycols are commonly

used in many types of cosmetic formulations such as:

?          Skin

care (creams, moisturizers, cleansers, lotions, sun care products)

?          Deodorants

and antiperspirants (roll-on, stick and gel deodorants)

?          Hair

care (shampoos, conditioners, wave sets, styling gels and coloring products)

?          Shaving

products (creams, foams, gels, and after-shave lotions)

?          Bath

and shower products

?          Perfumes

and colognes

?          Baby

care products (baby wipes)

?          Hand

cleansing and disinfecting gels

?          Color

cosmetics (blushes, eyeliner, lipsticks, eye shadow)

?          Dental

care (mouth washes and toothpastes)

PG USP/EP can be used in direct

food applications as:

?          Humectant

and stabilizer (in prepared fruits, vegetables and bakery goods)

?          Solvent

in flavor solutions and extractions (and in food additives, such as colors,

antioxidants, enzymes and emulsifiers)

?          Plasticizer

and softening agent for items such as cork seals

?          Flavor

extraction solvent and processing aid in the isolation of natural flavoring

materials (extracting vanilla from vanilla beans, for example) 

Propylene Glycol It also has the

following indirect food application uses:

?          Heat

transfer fluids for food and beverage chilling and freezing applications

?          Solvent

for printing inks used in food packaging

?          Equipment

cleaner, to remove contamination from food processing equipment 

has various beneficial uses

including:

?          Solvent

?          Stabilizer

?          Preservative

?          Energy

source

?          Humectant

for moist feeds

?          Dust

control agent for dry feed ingredients

?          Wetting

agent for molasses

?          Lowers

freezing temperature of feed

?          Preventative

for ketosis 

Propylene Glycol offers excellent

versatility and functionality in pharmaceutical applications:

?          Solvent

and extractant for a wide range of active ingredients, such as corticosteroids,

phenol derivatives, barbiturates, vitamins A and D, most alkaloids and many

local anesthetics

?          Emollient

for softening and smoothing

?          Humectant

for promoting moisture retention in skin-care products

?          Coupling

agent

?          Plasticizer

in aqueous film coating formulations

?          Emulsion

stabilizer

?          Dispersant

?          Viscosity

modifier

Application

Use

Dust suppression

Dust formation and the associated

housekeeping issues, plus the danger of dust explosions, make dust suppression

important in mining and cement grinding applications. Propylene Glycol

Industrial Grade (PGI) provides good wetting ability, hygroscopic nature, low

vapor pressure and low toxicity, and is ideal for use as a dust suppression

agent.

Dyes and Inks                                                    

Propylene glycols are excellent

solvents and compatibilizers for the many dyes, resins and inks used in modern

high-speed printing presses. System requirements determine the choice of

propylene glycol product:

 ?Propylene Glycol Industrial Grade (PGI) is

the best choice for polar formulation

 ?Dipropylene Glycol Regular Grade (DPG) is

used for intermediate polarity formulations

 ?Tripropylene Glycol Regular Grade (TPG) is

used for inks with higher-hydrocarbon makeup

 ?DOW PuraGuard? Propylene Glycol USP/EP is

recommended for applications where there is possible direct or indirect food

contact

Lubricants

Dipropylene Glycol Regular Grade

(DPG) has an affinity for oils that makes it an ideal component of textile

lubricant formulations. It is also approved by the FDA for indirect usage as a

surface lubricant in metal part manufacture (21CFR178.3910). The water solubility and solvency properties of

Tripropylene Glycol Regular Grade (TPG), along with its low volatility and high

boiling point make it especially useful in lubricants.

Natural Gas Dehydration

 When natural gas is recovered, its water content may need to be

lowered to prevent water from condensing in pipelines and freezing, or from

forming hydrocarbon hydrates. Hydrates can foul instruments and reduce line

capacity. The hygroscopic nature of Propylene Glycol Industrial Grade (PGI)

makes it an effective dehydrating fluid for use in the natural gas processing

industry.

Plasticizers

A plasticizer is a molecule that

is added to a polymer to modify its properties, making it easier to process

and/or meet application requirements such as improved toughness or flexibility.

Plasticizers function by internal solvation of the polymer chains. Dipropylene

Glycol Regular Grade (DPG) is reacted with phthalic acid or anhydride to form

the dipropylene glycol phthalate; one of the most important plasticizers for polyvinyl

chloride (PVC) resins.

Surfactants

 "Surfactant" is a contraction of the words surface-active and

agent. Surfactants function by changing the surface tension at the interface of

mixtures, allowing non-miscible materials to either be dispersed into water or

separated from water. Propylene glycols are used as initiators for synthesis of

nonionic surfactants made from polymerization of ethylene oxides with other

oxides such as propylene or butylene oxides. Propylene glycol is also used as

the starting material for the synthesis of propylene glycol esters with

sorbitol and/or fatty acids.

Waxes

Tripropylene Glycol Regular Grade

(TPG) and Dipropylene Glycol Regular Grade (DPG) are used to provide

freeze-thaw protection in various wax products to help prevent damage caused by

freezing.

  

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