... indexFCCMain contents ≥%95.0P2O5 ≥%57.0Fe ≤%0.01PH of 1% water solution 9.5-10.0Chloride, as Cl ≤%0.025Heavy metals, as ... : Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant ... warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, so as ...