See Also: formalin pigment(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Formalin(medicine)
formalin(dictionary)
Formalin(health)
neutral buffered formalin fixative(medicine)
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pigment(dictionary)
pigment(encyclopedia)
pigment(dictionary)

formalin pigment (medicine)


formalin pigment
<chemistry> A pigment formed when acid aqueous solutions of formaldehyde act on blood-rich tissues; characterised by rotation of the plane of polarised light, withstanding extraction in aqueous and lipid solvents, being bleached in acids and hydrogen peroxide; not formed when tissue is fixed with formaldehyde buffered to pH levels above 6.