| http://www.w3.org/ns/prov#value | - An alkali agent can be used for the purpose of adjusting the pH value of the processing solution, which may be, for example, a pH adjuster or buffer such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium tertiary phosphate, potassium tertiary phosphate, sodium silicate or potassium silicate.
|
