Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 540

—Mix together 4 pounds of oxalic acid, 4 pounds of table salt, water 50 gallons. The goods are laid in this mixture for 1 hour; they are then generally well bleached, and only require to be thoroughly rinsed and worked. For bleaching straw it is best to soak the goods in caustic soda, and afterwards to make use of chloride of lime or Javelle water. The excess of {121} chlorine is afterwards removed by hyposulphite of soda.