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ChemicalBook CAS DataBase List Boric acid
11113-50-1

Boric acid synthesis

9synthesis methods
Boric acid is prepared by treating borax with nitric acid and nitric acid is chosen over hydrochloric acid because sodium nitrate is more readily soluble than sodium chloride, and sulphuric acid is hard to wash out so not employed.
In laboratory boric acid is prepared from sodium borate.
Na2B4O7 + H2SO4 + 5H2O→ Na2SO4 + 4H3BO3
-

Yield:67-56-1 72.5%

Reaction Conditions:

with water

Steps:

3.3

3) After the reaction is completed, hydrolysis is carried out to obtain methanol and boric acid; the methanol yield is 72.5%. .

References:

CN108129506,2018,A Location in patent:Paragraph 0047; 0050

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