If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
435465
Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
average Mn ~5,800
Synonym(s):
Nanopatterning, Pluronic® P-123, block-copolymers, PEG-PPG-PEG
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
250 mL | Available to ship TODAY | $79.00 |
1 L | Available to ship TODAY | $173.00 |
About This Item
$79.00
Available to ship TODAYDetails
vapor density
>1 (vs air)
Quality Segment
vapor pressure
<0.3 mmHg ( 20 °C)
form
solid
feed ratio
20:70:20 (EO:PO:EO)
mol wt
average Mn ~5,800
composition
PEG, 30 wt. %
refractive index
n20/D 1.465
surface tension
34 dyn/cm, 25 °C, 0.1 wt. % in H2O
viscosity
350 cP(60 °C, Brookfield)(lit.)
transition temp
Tm (DSC) 39 °C (at peak), cloud point 90 °C (1 wt. % aqueous solution)
density
1.018 g/mL at 25 °C
HLB
7 - 9
SMILES string
O2C(C2)C.O1CC1
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
General description
Application
Features and Benefits
Physical form
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description average Mn ~5,800 | description average Mn ~2,900 | description average Mn ~14,600 | description average Mn ~8,400 |
| form solid | form viscous liquid | form - | form beads |
| density 1.018 g/mL at 25 °C | density 1.05 g/mL at 25 °C | density - | density 1.06 g/mL at 25 °C |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| viscosity 350 cP(60 °C, Brookfield)(lit.) | viscosity 850 cP(25 °C, Brookfield)(lit.) | viscosity 2,800 cP(77 °C, Brookfield)(lit.) | viscosity 1,000 cP(77 °C, Brookfield)(lit.) |
| HLB 7 - 9 | HLB 12.0 - 18.0 | HLB >24.0 | HLB >24.0 |
| mol wt average Mn ~5,800 | mol wt average Mn ~2,900 | mol wt average Mn ~14,600 | mol wt average Mn ~8,400 |
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Storage Class
11 - Combustible Solids
WGK
WGK 1
PPE (personal protective equipment)
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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What is the pour point of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
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Our supplier reports the pour point of product 435465 to be 31 °C.
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What is the average molecular weight of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
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While we do not test the product to determine the molecular weight, our supplier reports the average molecular weight to be 5750.
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What is the physical form of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) supposed to be?
1 answer-
The specification sheet describes Product No. 435465 as a semi-solid. It looks like a paste.
Helpful?
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I found an abbreviation of "HLB" on the webpage for Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)?
1 answer-
HLB is an empirical expression for the relationship of the hydrophilic ("water-loving") and hydrophobic ("water-hating") groups of a surfactant. The table below lists HLB values along with typical performance properties. The higher the HLB value, the more water-soluble the surfactant.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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What is the water content of Product No. 435465, Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol),?
1 answer-
While we do not test the product to determine the water content, our supplier reports the maximum water content allowed in Prouct No. 435465 is 0.4%.
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