Formvar 15/95 (Poly[vinyl formal])
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Formvar 15/95 (Poly[vinyl formal])
CAS Number: 9003-33-2
Powder used to make support films on E.M. grids for fragile samples. Polymer contains cyclic acetal units, some residual hydroxyl groups.
Soluble in: acetic acid, dioxane, THF, chloroform.
Hydroxyl content 5.0-6.5%; acetate 9.5-13.0 Formal 82%
Molecular Weight: 24,000-40,000
Tg: 108°
Refractive Index: n20/D 1.500
Appearance: powder
TSCA
Hazards:
Irritant
Handling: Gloves & chemical goggles
Storage: Store at room temperature
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