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202304

Sigma-Aldrich

Poly(propylene glycol)

average Mn ~425

Sinónimos:

PPG, Poly(propylene oxide)

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About This Item

Fórmula lineal:
H[OCH(CH3)CH2]nOH
Número de CAS:
25322-69-4
Número MDL:
MFCD00084446
Código UNSPSC:
12162002
ID de la sustancia en PubChem:
24852053
NACRES:
NA.23
presión de vapor:
<0.01 mmHg ( 20 °C)
En este momento no podemos mostrarle ni los precios ni la disponibilidad

densidad de vapor

>1 (vs air)

Nivel de calidad

200

presión de vapor

<0.01 mmHg ( 20 °C)

mol peso

average Mn ~425

contiene

130-190 ppm proprietary phenolic antioxidant

índice de refracción

n20/D 1.447

viscosidad

80 cSt(25 °C)(lit.)

valor hidroxilo

263 mg KOH/g

solubilidad

water: miscible (completely)

densidad

1.004 g/mL at 25 °C

cadena SMILES

CC(O)CO

InChI

1S/C6H14O3/c1-5(8)4-9-6(2)3-7/h5-8H,3-4H2,1-2H3

Clave InChI

DUFKCOQISQKSAV-UHFFFAOYSA-N

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Aplicación

Poly(propylene glycol) can be used:
  • As a plasticizer as it does not crystalize, has a low glass transition temperature, and is biocompatible. For example, it can be used in the plasticization of polylactic acid.
  • To prepare the aqueous biphasic system for the recovery of ectoine from Halomonas salina cells.
  • To study the virtual transition from supramolecular polymer(PPG) toconventional polymer(PPO).

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

445.0 °F - closed cup

Punto de inflamabilidad (°C)

229.44 °C - closed cup

Equipo de protección personal

Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
MKCV5089
MKCG2618
MKBZ3153V
01817PUV
SHBF4146V

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The study highlighted the main forces driving the formation of hydroxypropyl-cyclodextrins (HP-CDs) + poly(propylene) glycol 725 g mol(-1) inclusion complexes. The temperature parameter was chosen as the variable to modulate the hydrophobicity of the polymer, and consequently ITC experiments as
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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