Feasibility of carrot extract as invisible ink /
Hong, Sung Hee.
Feasibility of carrot extract as invisible ink / Sung Hee Hong. - Las Piñas City, Philippines : Southville International School and Colleges, 2006. - 20 pages : illustrations ; 28 cm.
Includes bibliographical references.
Invisible inks--Chemical properties.
Natural dyes and pigments.
Carrot extract--Chemical composition.
Secret writing--Organic compounds.
Feasibility studies--Natural ink sources.
PGS TP 910.C37 / .H772 2006
Feasibility of carrot extract as invisible ink / Sung Hee Hong. - Las Piñas City, Philippines : Southville International School and Colleges, 2006. - 20 pages : illustrations ; 28 cm.
Includes bibliographical references.
Invisible inks--Chemical properties.
Natural dyes and pigments.
Carrot extract--Chemical composition.
Secret writing--Organic compounds.
Feasibility studies--Natural ink sources.
PGS TP 910.C37 / .H772 2006