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  1. The table below gives the density (kg/L) and the corresponding concentration (% weight) of Sodium Hydroxide in water at different temperatures in degrees centigrade (°C). The table was taken from "Perry's Chemical Engineers' Handbook" by Robert H. Perry, Don Green, Sixth Edition.

  2. A 50% (w/w) sodium hydroxide solution means that there is 50 g of NaOH per 100 g of solution. The density of 50% (w/w) Sodium hydroxide solution is 1.515 g/ml at 25°C which means that the weight of the 1 ml of Sodium hydroxide solution is 1.515 g at 25°C.

  3. Sodium hydroxide, 50% w/w aq. soln., Thermo Scientific Chemicals. Catalog Number: 033382.22. CAS Number: 1310-73-2. IUPAC Name: sodium hydroxide. Molecular Formula: HNaO.

  4. Sodium Hydroxide 50% Solution, Diaphram Grade (NaOH) Property Specifications Specific Gravity at 15.5 Deg C 1.53 Freezing Point Deg C 12 Boiling Point Deg C 142 Total Alkali (as Na2O), wt % 38.0 – 39.5 Caustic Soda (as NaOH), wt % 49.0 – 51.0 Carbonates (as Na2CO3), wt % 0.2 max.

  5. Caustic Soda Solution 50% fulfils the criteria of purity for food additives according to Zusatzstoff- Zulassungsverordnung (ZZulV), Zusatzstoff- Verkehrsverordnung (ZVerkV), Food Chemicals Codex (FCC) and of products for water treatment concerning to human applications referred to DIN EN 896.

  6. Safety Data Sheet. Sodium Hydroxide, 50% FCC. 1. PRODUCT AND COMPANY IDENTIFICATION. Product Name: Sodium Hydroxide, 50% FCC. Synonyms/Generic Names: Caustic Soda Solution. Product Number: 5075. Product Use: Industrial, Manufacturing or Laboratory use. Manufacturer: Columbus Chemical Industries, Inc. N4335 Temkin Rd. . Columbus, WI. 53925.

  7. Calculator for Making Sodium Hydroxide Solution. This calculator calculates the amounts of two starting solutions of given concentration needed to be mixed together to obtain the final solution requirements. Volume or weight of solution may be used.

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