... When Heated to 1 Specifications: Assay, % 97.0-101.0Loss on drying, % ≤ 25.0/≤ 12.0/≤ 7.0Alkaline(as NaCO3), % ≤ 1.0Free acid ... , % ≤ 1.0Heavy metals (as Pb), % ≤ 0.002Arsenic(as As), % ≤ 0.0003Application: Sodium Malate is an excellent food preservative, especially ...