Campos & Davis Photos (photos@campos-davis.co.uk)
Sat, 17 Jul 1999 16:30:43 +0100
>>White mineral oil, white oil, or liquid paraffin: obtained from the
>>fraction of petroleum distilling at 626-734 degrees F, then purified by
>>treatment with acid, alkali, and activated carbon. Used mainly as a
>>laxative, and for other miscellaneous purposes.
Thats it. It is good at all that and waxing negs!!!!
Campos & Davis Photos
6 Cranbourne Road
London N10 2BT
Tel/Fax + 44 181 883 8638
email: photos@campos-davis.co.uk
WEB SITE: http://www.campos-davis.co.uk
----------
> From: Charles Steinmetz <csteinmetz@redneck.efga.org>
> To: alt-photo-process-l@skyway.usask.ca
> Subject: Paraffin: US v. Britain
> Date: Saturday, 17 July, 1999 5:20 AM
>
> Paraffin or paraffin wax: a hydrocarbon mixture having the physical
> properties of a wax [i.e., similar in consistency to beeswax], obtained
> from the distillate from the fuel-oil fraction of petroleum by chilling
and
> filtering. There are a number of grades, melting from 105-145 degrees F.
> [Candles are often made of this material, often with the addition of
> stearates; paraffin is also the material with which US kitchen "wax
paper"
> is impregnated.]
>
> Paraffin oil: a fraction distilled from the fuel oil fraction of
petroleum
> after the wax has been separated by cooling and filtration. The yellow
or
> brown oil is treated with sulfuric acid and adsorbent earth to give a
> light-colored oil relatively free from impurities. Used as a leather
> dressing, floor treatment, "etc.," or, if further refined, as a
lubricant.
>
> White mineral oil, white oil, or liquid paraffin: obtained from the
> fraction of petroleum distilling at 626-734 degrees F, then purified by
> treatment with acid, alkali, and activated carbon. Used mainly as a
> laxative, and for other miscellaneous purposes.
>
> Source for the above: Snell and Snell, _Chemicals of Commerce_ (1939).
>
>
> Paraffin: Paraffin wax, hard paraffin. A mixture of solid hydrocarbons
> obtained from petroleum. Colorless or white, somewhat translucent,
> odorless mass; greasy feel. Used to raise the melting point of
ointments,
> making wax paper and candles, waterproofing wood, cork, etc. vessels, and
> as a lubricant.
>
> Petrolatum, Liquid: liquid paraffin, white mineral or paraffin oil;
> Alboline, Nujol, Paroleine, Saxol, Adepsine oil, Glymol. Used as a
> laxative.
>
> Source for the above: Merck Index 6th ed. (1952).
>
>
> I was going to post entries for benzene and benzine (or benzin), but
Peter
> already provided the information. Benzene, petroleum ether, and carbon
> tetrachloride all dissolve paraffin wax. Long ago, the easier way to wax
> paper negatives was to use such solutions rather than melting the
paraffin.
> Beeswax dissolved in turpentine also works.
>
> Best regards,
>
>
> Charles
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