CAS 68915-31-1 appears in our catalog under these names: Sodium metaphosphate, extra pure, acidic, 1 kg, plastic, Sodium polyphosphate, 95%, Sodium Hexametaphosphate, Sodium polyphosphate, crystal,+200 mesh, 96%, Sodium metaphosphate, extra pure, acidic, 5 kg, plastic. Offered by: Roth, Combi-blocks, TRC, Chemat, Biosynth. Available pack sizes: 1kg, 500g, 5g, 25g, 100g, 10g, 1g, 250g.