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CAS#: 50-00-0 | Formula: HCHO | Specifications: Assay 36.5 - 38.0 %, Chloride 0.0005 % Max, Color (APHA) 10 Max, Heavy Metals (by ICP-OES) 0.0005 % Max, Iron 0.0005 % Max, Preservative 9-15% Methanol, Residue after ignition 0.005 % Max, Sulfate 0.002 % Max, Titrable acid 0.006 meq/g Max