Open Access
Review

Table 3

Composition of selected mounting media.

Mounting medium Solvent Potential pre-polymer(s) or polymer Remarks
Hoyer = chloral gum Glycerol, water Compounds of gum arabic Macerating agent: chloral hydrate
CMCP-9 (= carboxy methyl cellulose phenol) Water (CMCP-9: 51−60%) Fully hydrolyzed polyvinyl alcohol (CMCP-9: 0−5%) CMC(P)-9: low viscosity: high viscosity
DMHF (dimethyl hydantoin formaldehyde) Water N,N′-dimethylol dimethyl hydantoin (di-methylol DMH)
Ether-/methylene-bridged oligomers
Crosslinked DMH–formaldehyde polymer network
Canada balsam Xylene; partly volatile components of balsam (Δ³-carene, levopimaric acid, limonene, myrcene, palustric acid, β-phellandrene, α- pinene, β-pinene) balsam (abienol, abietic acid, isopimaric acid, sandaracopimaric acid) Neutralization: potassium carbonate; resin from Abies balsamea (Linné, 1758)
Euparal® Eucalyptol, paraldehyde; partly volatile components of gum sandarac (limonene, α-pinene, β-pinene) compounds of gum sandarac (communic acid, manool, polycommunic acid, sandaracopimaric acid, 12-acetoxy-sandaracopimaric acid, sugiol, torulosic acid, torulosol, totarol) Clearing agent: methyl salicylate; color in Euparal® green: copper salt (copper abietinate); sandarac resin from Tetraclinis articulata (Vahl, 1791)
Enecê Ethyl alcohol; with camphor, eucalyptol and turpentine essence Compounds of copal gum and colophony (rosin)

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