The sinongolia have an advantageous position on all alkali industry! The manufacture and sale net all over the world, pls leave message to sinongolia-chem@163.com sodium sulphide in the ancient papermaking application Relative to one of China's four great inventions of papermaking, the use of sulfate and charcoal in ancient Egypt, heating, chemical synthesis of sodium sulphide used in papermaking technology, also after a very long history of 4000 years. Sodium sulfide which became the 'pulp deligni...
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