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To raise calcium by 20 ppm in 100 L: 2.8 g.
Food/reagent grade only; some reef 'kalk' products are CaO. Agricultural/builder's lime is not acceptable.
• Reacts violently/exothermically with water to form Ca(OH)2 (1 g CaO -> 1.321 g Ca(OH)2); add slowly to cold water.
• Same saturation limit as kalkwasser once hydrated - use it only to make limewater; all kalkwasser cautions apply.
• Severe eye/skin/respiratory irritant.
pH effect: strongly raises (forms Ca(OH)2 in water).
Food/reagent grade only; some reef 'kalk' products are CaO. Agricultural/builder's lime is not acceptable.
pubchem.ncbi.nlm.nih.gov/
archive.reefcentral.com/forums/archive/index.php/t-499880.html