Oct 29, 2010. /Lesprom Network/. Kemira announces price increases for its pulp and bleaching chemical products. The increase will range from 15 to 35% for products such as sodium chlorate, sodium hydroxide, hydrogen peroxide, sulphur products and hydrochloric acid. The increase will be effective for all deliveries on or after November 1. While Kemira continues to take actions to minimize the impact of escalating raw material costs, it is necessary to adjust pricing in order to compensate for the energy impact, other raw material costs and increased freight costs of the pulping and bleaching chemical product lines, Kemira writes in a press release. Kemira also announces price increases for its sodium percarbonate products. The increase will be 10%. The increase will be effective for all deliveries on or after November 1. The reason for the price increase is that costs have increased and supply has tightened for key raw materials.