Ferromanganese Anodes in Caustic Soda

The larynx and caustic soda ingestion.

Pneumothorax following inhalation of caustic soda fumes.

new family home. He accidentally leant over the bucket and inhaled the fumes produced by the solution. Five minutes after the inhalation, he developed persistent pleuritic, right-sided chest pain and breathlessness. There was no personal or family history of pulmonary disease, and he had never smoked. Physical abnormalities were confined to the chest. He had a respiratory rate of 30 a minute an...

Regeneration of Caustic Soda Etch Solutions for Aluminum

A system for the regeneratlon of caustic soda solutlons used In etching aluminum Invokes the hydrolysis of sodium aluminate to llberate free sodium hydroxide and produce a dry, crystalllne hydrated alumlna byproduct. The system has been used extenslvely In Japan, and, by adjusting process parameters, can be adapted to North American practice. By otlllting the system in a typical plant, soild ai...

On the Swelling of Gelatin in Hydrochloric Acid and Caustic Soda.

CONTENTS PAGE I. Introductory 147 II. Materials and methods ..148 III. The swelling of gelatin in water, hydrochloric acid and caustic soda . .148 IV. The state of gelatin dissolved by acid or alkali in the cold 153 V. The basic and acidic properties of gelatin . .155 VI. The behaviour of swollen gels in an atmosphere of saturated water vapour . .156 VII. Theory of gel structure deduced from a ...

Hydrogen peroxide and caustic soda: Dancing with a dragon while bleaching

When hydrogen peroxide is mixed with caustic soda, an auto-accelerating reaction can lead to gen­ eration of significant amounts of heat and oxygen. On the basis of experiments using typical pulp mill process con­ centration and temperatures, a relatively simple kinetic model has been developed. Evaluation of these model results reveals that hydrogen peroxide-caustic soda systems are extremely ...