Sy: your mail is bouncing. Wanted to ask you if there is a commonly available source of quaternary ammonium salts? Any commercially available products that contain these? Any thing at the hardware store by chance? Thanks for the lead. Regards Moray James.
Sorry, I did get the last couple of emails; hope you got my responses. Have you tried the usual chemical supply house suspects like Aldrich or Alpha?
try checking at the pool supply store... many of the algaecide's use di and quat salts...
Also hospital disinfectant solns.
Also hospital disinfectant solns.
Quata-fied solutions!
Auplater thanks for the heads up on the possible retail sources of Quats.
Sy's first pick for this cool soon to be disclosed witches brew that may well have you all grinning is a chemical known as "trimethylcetylammonium chloride". Now I have no idea what that is so perhaps you can point me to some off the shelf compound that will contain this stuff?
The game plan here is to mix this (trimethylcetylammonium chloride) in with a cool modified PVA adhesive that will act as a diaphragm coating that will have a volume resistivity in the neighbourhood of 10-30 meg ohms per square. As soon as I get the brew fermented I will post the cocktail for the pleasure of all. Thanks for any help and suggestions. Regards Moray James.
Auplater thanks for the heads up on the possible retail sources of Quats.
Sy's first pick for this cool soon to be disclosed witches brew that may well have you all grinning is a chemical known as "trimethylcetylammonium chloride". Now I have no idea what that is so perhaps you can point me to some off the shelf compound that will contain this stuff?
The game plan here is to mix this (trimethylcetylammonium chloride) in with a cool modified PVA adhesive that will act as a diaphragm coating that will have a volume resistivity in the neighbourhood of 10-30 meg ohms per square. As soon as I get the brew fermented I will post the cocktail for the pleasure of all. Thanks for any help and suggestions. Regards Moray James.
The particular quat I mentioned is very common in antistatic sprays and laundry sheets.
Pedantic point: the resistivity you mention is a surface resisistivity, not volume. Volume resisitivities are measured in ohms-cm. Surface resisitivities are measured in ohms/square.
Pedantic point: the resistivity you mention is a surface resisistivity, not volume. Volume resisitivities are measured in ohms-cm. Surface resisitivities are measured in ohms/square.
Question Sy
Sy: does trimethylcetylammonium chloride impart a volume resistivity to the material it is added to or does it work by hydroscopic action of water on the surface? I would prefer a volume resistivity so as not to have fluxuations due to humidity changes. Thanks Moray James.
Sy: does trimethylcetylammonium chloride impart a volume resistivity to the material it is added to or does it work by hydroscopic action of water on the surface? I would prefer a volume resistivity so as not to have fluxuations due to humidity changes. Thanks Moray James.
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