Removal of grease stains

Item No. P7186000 | Type: Experiments

10 Minutes
20 Minutes
grades 5-7 , grades 7-10 , grades 10-13
medium
Pupils
EUR 95.50
Content 1 piece
EUR 113.65 Incl. VAT

I'm also part of:

Student set Food chemistry, TESS advanced Chemistry

Item No. 25306-88 | Type: Set

Delivery time: available
EUR 460.00 Excl. VAT
EUR 547.40 Incl. VAT
Student set Food chemistry digital, TESS advanced Chemistry

Item No. 25306-88D | Type: Set

EUR 560.10 Excl. VAT
EUR 666.52 Incl. VAT



Principle
Grease stains can be dissolved out by treating them with petroleum ether. With coloured textiles, the colour-fastness of the material must be tested on an inconspicuous part prior to stain removal. Halogenated hydrocarbons are favourized because of their solubility for fats, but their use is ecologically of concern als well as being a health hazard. Organic solvents are highly inflammable.Try to remove a grease stain from a linen cloth.

 

Learning objectives

  • Solubility of fats and oils in organic substances

 

 

Benefits

  • Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
  • Experiment is part of a complete solution set with experiments for the topic Food Chemistry matched with international curriculum: all topics are covered

 

Name
Filename
Filesize
Filetyp
(de) Versuchsbeschreibung
p7186000d .pdf
Filesize 0.67 Mb
pdf
(en) Experiment guide
p7186000e .pdf
Filesize 0.67 Mb
pdf