Some brands of erasers also contain phthalate plasticizers. Are they good sources of phthalate? Will the rubber react with NaOH to form some difficult
to separate side products? VSEPR_VOID - 26-5-2018 at 20:13
[Edited on 27-5-2018 by VSEPR_VOID]DavidJR - 27-5-2018 at 01:54
Phthalic anhydride and phthalic acid are difficult to find, but potassium hydrogen phthalate ("KHP") is relatively easy to get (primarily used for
buffer solutions). From that it's easy enough to get the acid and then anhydride.fusso - 29-5-2018 at 08:21
Most regulatory agencies either downright ban phtalate plasticizers for products catered to children or set very low permissible concentrations (less
than 0,1% weight in the US for instance)
Definitely not a good source unless you own a eraser recycling plant... heck, even then it would probably not be worth it. VSEPR_VOID - 29-5-2018 at 23:20
Some brands of erasers also contain phthalate plasticizers. Are they good sources of phthalate? Will the rubber react with NaOH to form some difficult
to separate side products?
Common PET bottles must be much better sources of phthalates. fusso - 29-5-2018 at 23:43
Some brands of erasers also contain phthalate plasticizers. Are they good sources of phthalate? Will the rubber react with NaOH to form some difficult
to separate side products?
Common PET bottles must be much better sources of phthalates.
what are the illicit uses that make it "banned" just curious Pumukli - 2-6-2018 at 14:28
Nothing illicit, o-phthalates are oestrogen-mimetic (or simply "just" endocrine disruptors) and are probably (one) cause of the world turning more and
more "feminine". They can lead to decreased sperm count from frogs to humans and cause male-sterility.
phthalic anhydride
repogreg - 13-6-2018 at 05:16
phthalic anhydride and phallamide are both on amazon and ebay under 50$ for 500 grams Bert - 13-6-2018 at 10:32
[Edited on 6-13-2018 by Bert]chemplayer... - 17-6-2018 at 19:27
Diethylphthalate is available in many parts of the world in an ethanol solution as a cheap (and very old school) insect repellent lotion. Distill off
the ethanol, hydrolyse the ester with excess NaOH (caution not to 'half-hydrolyse it') and then acidify to get the phthalic acid. Home chemistry is
definitely a much better use for this product than repelling insects (and exposing yourself to large phthalate doses in the process!).
