Error:
Na2%5BB4O5%28OH%294%5D*8H2O %2B HCl %3D NaCl %2B H3BO3 %2B H2O
^
Unexpected character ('%')Na2%5BB4O5%28OH%294%5D*8H2O %2B HCl %3D NaCl %2B H3BO3 %2B H2O
^
Unexpected character ('%')