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Electron Microscopy Sciences PTA (Phosphotungstic Acid), Crystal 100 GR
Supplier: Electron Microscopy Sciences 19500
(Tungstophosphoric Acid)
CAS #12501-23-4 H₃[P(W₃O₁₀)₄] F.W. 2880.17 aq
Tungstophosphoric Acid is used as a fixative and widely as a Negative Stain. References
Issidorides, M.R., and Kasorchis, T. (1981). Dispersed and compact chromatin demonstrated with a new EM Method: phosphotungstic acid-hematoxylin block-staining. Histochemistry 73,21.
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