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STS0203

Sigma-Aldrich

ECO TWEEN® 65

greener alternative

Synonym(s):

TWEEN® 65, Polyoxyethylenesorbitan Tristearate

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About This Item

CAS Number:
9005-71-4
MDL number:
MFCD00165348

description

non-ionic

Quality Level

200

form

liquid (may appear solid at room temperature )

composition

Stearic acid, ≥40% (balance primarily palmitic acid)

greener alternative product characteristics

Use of Renewable Feedstocks
Design for Degradation
Learn more about the Principles of Green Chemistry.

HLB

10.5

greener alternative category

, Aligned

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is a biobased surfactant and is aligned with the 7th principle of Green Chemistry "Use of Renewable Feedstocks" and the 10th principle "Design for Degradation".

TWEEN 65 is a fatty acid polyoxyethylene ester of sorbitan.

Application

TWEEN 65 has been used in a study as a carbon source for the reductive dechlorination of hexachlorobenzene in a mixed, methanogenic culture. It has also been used in a study to investigate its ability to stimulate growth of the hypocotyl of Amaranthus caudatus L.

Features and Benefits

  • 100 % Renewable
  • 100 % Bio-based
  • Certified to the USDA BioPreferred Program
  • Lower carbon footprint than petrochemical-based versions

Legal Information

TWEEN is a registered trademark of Croda International PLC

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

300.2 °F - closed cup

Flash Point(C)

149.00 °C - closed cup

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D H Yeh et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 52(1-2), 343-349 (2005-09-27)
Three structurally-related, nonionic, polysorbate surfactants (Tween 60, 61, and 65) were used as the sole carbon source to sustain the microbial, sequential reductive dechlorination of hexachlorobenzene (HCB) in a mixed, methanogenic culture derived from a contaminated estuarine sediment. The surfactants

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