... : colorless transparent liquid Purity: 90% Application: in rubber, textile,printing I Formic acid leather grade 1. FORMIC ACID FEED ... , DMF, Age resister, etc. 4 Leather industryTanning, etc. 5 Textile industryNatural Rubber. 6 Rubber industryCoagulation, etc. 7 Steel industryAcid cleaning ... factiry is located in Henan Provious,which is the biggest chemicals production base in China.2.As a member of ...