Tertiary alcohol compounds of formula are novel wherein R1 and R2 are C1\u201310 alkyl groups which may have halogen substituents, or R1 and R2 may form an aliphatic hydrocarbon ring, Y and Z are a single bond or a divalent C1\u201310 organic group, and k=0 or 1. Paper is drawn from the internal wrapping of the roll out through an opening to form a loose spiral having overlaps of three thicknesses of paper. Contaminated vapors extracted from the soil andor groundwater may be reintroduced into the site. Its signal typifies pixels in a matrix frame indicating a current position frame and, over time, a previous position frame. The nano-talc powder provided by the invention is a novel hydrophilic talc composition.