[Alt-photo] Re: lump gum

[Peter Friedrichsen]

i tried thyme essential oil once but it did not work nearly as well as thymol. I discovered that there are many other components that dilute the actual thymol, such as terpenes etc...

I did manage to buy 100g of pure thymol crystals from an aromatics supply store but this is in Canada. Price was about $8.00/100 g a couple of years ago...a lifetime supply.

Peter Friedrichsen




On 2013-10-19, at 12:27 PM, Jorj Bauer <jorj at jorj.org> wrote:

> Thyme oil might work. Don't know what impurities might come with it. The stuff at the drug store is generally just thymol in alcohol. 
> 
> Sent from my iPhone
> 
> On Oct 19, 2013, at 12:00 PM, Laura V <laura at lavatop.com> wrote:
> 
>> Oh I see, so maybe at the drug store. I didn't know what it was. I read that it is derived from thyme, so maybe thyme oil would work as well? Thanks!
>> 
>> Laura
>> 
>> On 10/19/13 3:46 PM, Jorj Bauer wrote:
>>> Glyoxol is a hardener. You probably don't want to use that as a preservative for gum.
>>> 
>>> Thymol should work. I'd be surprised if you couldn't find that; it's commonly used as an anti-fungal for finger- and toe-nails.
>>> 
>>> -- Jorj
>>> 
>>> On Oct 19, 2013, at 11:40 AM, Laura V <laura at lavatop.com> wrote:
>>> 
>>>> Thanks for this. I have not used a preservative before (mainly because I don't know where to buy it). I usually just mixed a small batch (when I had the powdered stuff) and kept it in the fridge and used it within 2 weeks.
>>>> 
>>>> Unless, is glyoxol a preservative? I have some that I used in paper sizing. It would be handier to always have the gum pre-mixed.
>>>> 
>>>> Laura
>>>> 
>>>> On 10/19/13 3:01 PM, Guido Ceuppens wrote:
>>>>> Laura,
>>>>> 
>>>>> I used the following procedure with lumps of gum:
>>>>> 
>>>>> 300 grs of gum are slowly dissolved in 850 ml of cold water, this may take
>>>>> several days. The impurities are then filtered or fished out, some
>>>>> recommend to suspend the lumps of gum in a muslin bag to prevent the
>>>>> impurities to float in the solution. Once dissolved a preservation agent
>>>>> must be added to the solution: in the past I have added either 15 ml of
>>>>> formol or 7.5 grs of sodium benzoate. I have used the thus prepared gum for
>>>>> years without it going bad (I mainly use casein now but occasionally use
>>>>> gum that was prepared from powder –same procedure- 7 years ago).
>>>>> 
>>>>> Welcome back and good luck,
>>>>> 
>>>>> Guido
>>>>> 
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