Polypropylene Glycol
Polypropylene glycols (PPGs) are condensation polymers of Propylene oxide and water with the general formula H(OCH2CH2(CH3))nOH. Chemically they are polyether. PPGs are clear, viscous liquids with low pour points. Viscosity increases and water solubility decreases with increasing molecular weight. PPGs linear polymers containing two terminal hydroxyl groups. PPG has many properties in common with polyethylene glycol. Solubility in water decreases rapidly with increasing molar mass. Secondary hydroxyl groups in PPG are less reactive than primary hydroxyl groups in polyethylene glycol.
Polypropylene glycols (PPGs) are used in many formulations for polyurethanes. They are used as rheology modifiers. They are also used as thickener in many products and in toothpaste to prevent bacteria from breaking down the pyrophosphates used to control tartar buildup.
| Packaging Type | Net weight | Gross weight | No. of drums per pallet | No. of pallets in a 20 FLC | Shelf life | IMCO Class |
|---|---|---|---|---|---|---|
| New Steel Drums | 220 Kgs | 238 Kgs | 4 | 20 | 2 yrs | Non-Imco |
We can produce other types of Polypropylene Glycols (KEPPGs), moreover customized packing will be available according to customer’s request.
Full information on the safety, handling and storage of KEPPGs is available in the corresponding Material Safety Data Sheet (MSDS).
Polypropylene Glycol 500
Trade Name:KEPPG 500
Specification
|
No. |
Test |
Standard |
References |
|---|---|---|---|
|
1 |
Appearance at 25˚C |
Clear liquid |
--- |
|
2 |
Water, percent |
Max. 0.5 |
ASTM E203 |
|
3 |
pH (5% in water) |
4.5-7.5 |
ASTM E70 |
|
4 |
Viscosity at 25ºC ,cSt |
70-80 |
ASTM D445-09 |
|
5 |
Hydroxyl value, mg KOH/g |
215-235 |
ASTM D4252 |
|
6 |
Average molecular weight, g/mol |
475-520 |
--- |
Polypropylene Glycol 1000
Trade Name:KEPPG 1000
Specification
|
No. |
Test |
Standard |
References |
|---|---|---|---|
|
1 |
Appearance at 25˚C |
Clear liquid |
--- |
|
2 |
Water, percent |
Max. .05 |
ASTM E203 |
|
3 |
Refractive Index @25˚C |
1.448±0.003 |
ASTM D1214 |
|
4 |
pH (5% in water) |
4.5-7.5 |
ASTM E70 |
|
5 |
Viscosity at 40˚C |
ca. 78 |
ASTM D445-09 |
|
6 |
Hydroxyl Value, mg KOH/g |
105-120 |
ASTM D425 |
|
7 |
Average molecular weight, g/mol |
950-1050 |
--- |
Polypropylene Glycol 2000
Trade Name:KEPPG 2000
Specification
|
No. |
Test |
Standard |
References |
|---|---|---|---|
|
1 |
Appearance at 25˚C |
Clear liquid |
--- |
|
2 |
Water, percent |
Max. 0.5 |
ASTM E203 |
|
3 |
Refractive Index @25˚C |
1.449±0.003 |
ASTM D1214 |
|
4 |
pH (5% in water) |
4.5-7.5 |
ASTM E70 |
|
5 |
Viscosity at 40˚C |
ca. 160 |
ASTM D445-09 |
|
6 |
Hydroxyl Value, mg KOH/g |
50-60 |
ASTM D425 |
|
7 |
Average molecular weight, g/mol |
1870-2245 |
--- |
Polypropylene Glycol 3000
Trade Name:KEPPG 3000
Specification
|
No. |
Test |
Standard |
References |
|---|---|---|---|
|
1 |
Appearance at 25˚C |
Clear liquid |
--- |
|
2 |
Water, percent |
Max. 0.5 |
ASTM E203 |
|
3 |
Refractive Index @25˚C |
1.448±0.003 |
ASTM D1214 |
|
4 |
pH (5% in water) |
4.5-7.5 |
ASTM E70 |
|
5 |
Viscosity at 40˚C |
ca. 250 |
ASTM D445-09 |
|
6 |
Hydroxyl Value, mg KOH/g |
32-42 |
ASTM D425 |
|
7 |
Average molecular weight, g/mol |
2670-3500 |
--- |