Ox gall is
gall
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to be ...
, usually obtained from
cows, that is an ingredient in
bile soap and mixed with alcohol and used as the
wetting agent in
paper marbling
Paper marbling is a method of aqueous surface design, which can produce patterns similar to smooth marble or other kinds of stone. The patterns are the result of color floated on either plain water or a viscous solution known as size, and then ca ...
,
engraving
Engraving is the practice of incising a design onto a hard, usually flat surface by cutting grooves into it with a burin. The result may be a decorated object in itself, as when silver, gold, steel, or glass are engraved, or may provide an i ...
,
lithography, and
watercolor painting
Watercolor (American English) or watercolour (British English; see spelling differences), also ''aquarelle'' (; from Italian diminutive of Latin ''aqua'' "water"), is a painting method”Watercolor may be as old as art itself, going back to ...
. It is a greenish-brown liquid mixture containing
cholesterol,
lecithin
Lecithin (, from the Greek ''lekithos'' "yolk") is a generic term to designate any group of yellow-brownish fatty substances occurring in animal and plant tissues which are amphiphilic – they attract both water and fatty substances (and so ar ...
,
taurocholic acid, and
glycocholic acid
Glycocholic acid, or cholylglycine, is a crystalline bile acid involved in the emulsification of fats. It occurs as a sodium salt in the bile of mammals. It is a conjugate of cholic acid with glycine
Glycine (symbol Gly or G; ) is an amino ...
.
References
{{reflist
External links
* http://www.winsornewton.com/news/making-water-thick-or-thin-gum-arabic-and-ox-gall
* http://www.neogen.com/acumedia/pdf/ProdInfo/7216_PI.pdf
* http://www.usbio.net/item/O8175
Animal glandular products
Surfactants