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81380

Sigma-Aldrich

Polypropylene glycol

P 2,000

Synonym(s):

PPG

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About This Item

CAS Number:
25322-69-4
MDL number:
MFCD00084446
UNSPSC Code:
12162002
PubChem Substance ID:
24887761
NACRES:
NA.23

form

liquid

mol wt

Mn 1513

refractive index

n20/D 1.451

viscosity

~450 mPa.s(20 °C)

solubility

water: miscible (completely)

density

1.00 g/mL at 20 °C

InChI

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

InChI key

DUFKCOQISQKSAV-UHFFFAOYSA-N

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General description

Polypropylene glycol is an addition polymer of propylene glycol and water. It is represented by the formula HO(C3H6O)nC3H6OH in which n represents the average number of oxypropylene groups. Polypropylene glycol is soluble in water and in certain organic solvents as aliphatic ketones and alcohols and insoluble in ether and in most aliphatic hydrocarbons.

Application

Polypropylene glycol (PPG)is widely used as an antifoaming agent. For example, it can be used to controlfoam in the production of Bacillus thuringiensis-based biopesticides fromsewage sludge.

It can be used in thepreparation of polyurethane(PU) elastomers. For example, it can be used tosynthesize PU elastomers with good acoustic absorption properties.

PPG-2000 can be used as a soft segment in the preparationof PU-based self-healing polymeric networks. These networks find application in the field of soft electronics.

Features and Benefits

  • Long and flexible alkyl groups promotechain mobility, which facilitates rapid self-healing.
  • The methyl groups present on the sides of thepolymer improve emulsification in water.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

445.0 °F - closed cup

Flash Point(C)

229.44 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 4 petroleums
Hazardous rank III

JAN Code

81380-6X1L:
81380-10ML-KC:
81380-1L:
81380-BULK:
81380-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

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There are various arguments and models connecting the characteristic length associated with the boson peak vibrations ξ to the length scale of dynamical heterogeneity L(het). ξ is usually defined as the ratio of the transverse sound velocity to the boson
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In this work, we proposed a novel aqueous biphasic system (ABS) composed of polypropylene glycol P400 (PPG P400) and hydrophilic ionic liquids (IL), 1-alkyl-3-methylimidazolium bromide (alkyl = ethyl or butyl), forming an upper polymer-rich phase and a lower IL-rich phase
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