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Boiling stones 500G^ Boiling stones, CAS Number: 1344-28-1, Grade: Analytical Reagent, Molar Mass: 101.96 g/mol, Synonyms: Anti-bumping granules, Adsorbent Filter Aid, Sieve analysis: 1 mm min. 95 %, Particle size 1-3 mm, Density: 4.0 g/cm3, Size: 500G