Mr. Sander was noted for his cool, abstract arrangements of highly simplified rectangular planes, saturated with color—paintings whose effect was calm and meditative, enhanced by a quiet lyricism.

His work is represented in many public collections, among them the Whitney Museum, the Guggenheim Museum, the Art Institute of Chicago, the Walker Art Center in Minneapolis and the Albright‐Knox Museum in Buffalo. Recently the Metropolitan Museum of Art acquired one of his canvases.

A charter member of the Club, the postwar group of New York artists famous for its polemical discussion sessions, Mr. Sander was an associate of such abstract expressionist painters as Willem de Kooning, James Brooks and Robert Motherwell. Yet the austere, highly controlled mode of his work seemed more to foreshadow later kinds of painting, such as color field.

Mr., Sander was born on Staten Island on July 18, 1906. He attended the Art Students League from 1928 to 1930, and in 1931 was one of the first of his generation from the country to study with the noted teacher‐painter Hans Hofmann, at that time still in Munich. 

After Army service during World War II, Mr. Sander went back to school, earning a B.A. degree from New York University in 1952: From 1959, on, he had a number of one‐man shows, at the Leo Castelli, Kootz, A. M. Sachs, Lawrence Rubin and Knoedler galleries here.

In a laudatory review of the last show of his work, held in May at the Knoedler Galleries, the critic John Russell wrote in The New York Times: “His is a paradoxical art in that he works on quite a large scale and yet, speaks to us in a cool, clear whisper…. He echoes the tradition of a bygone Europe one in which people did what they had to do with no thought of racing for position.”

Mr. Sander received a grant from the National Council on the Arts in 1967, and a Guggenheim Fellowship in 1968. In 1971 he was given a citation and an award by the National Institute of Arts and Letters, and a purchase award by the American Academy of Arts and Letters in 1973.