Sodium hydroxide standard
Thread Content
Characteristics of flaky caustic soda: white flakes, easily soluble in water, and strongly exothermic. The solution is strongly alkaline, easily deliquescent in the air, and is highly corrosive. Molecular formula: NaOH specifications: Sodium hydroxide (NaOH) ≥96% ≥98% ≥99% Sodium carbonate (Na2CO3) ≤1.4% ≤1.1% ≤0.9% Sodium chloride (NaCl) ≤2.8% ≤0.6% ≤0.15% Iron (calculated as Fe2O3) ≤0.01% ≤0.01% ≤0.01% Implementation standards: GB209-92 packaging: 25kg plastic woven bag, lined with a plastic bag and the innermost layer is a plastic film bag. Characteristics of solid caustic soda: white solid, brittle ； Easily soluble in water, and strongly exothermic. The solution is strongly alkaline, easily deliquescent in the air, and highly corrosive. Molecular formula: NaOH specifications: Sodium hydroxide (NaOH) 96.0% Sodium carbonate (Na2CO3) ≤1.40% Sodium chloride (NaCl) ≤2.80% Iron (calculated as Fe2O3) ≤0.01% Implementation standards: GB209-92 packaging: 200kg new iron drum.
Another supplement is liquid sodium hydroxide, with a concentration of 30%. Some companies will also evaporate to 60% concentration, mainly depending on customer requirements.
What is the heat of dissolution of 30% sodium hydroxide? It is urgently needed! ! !