Dec 28, 2017 17:36
6 yrs ago
English term
PHARMACY - LIFE SCIENCES
Native in: Russian
Works in: English to Russian, Russian to English
potassium hydroxide-ethanol
English to Russian
Medical
Medical: Pharmaceuticals
Acid value Not more than 2.0 (using ethanol (95) instead).
Saponification value Introduce about 4 g of Polysorbate 80 into a 250-mL borosilicate glass flask.
Add exactly 30 mL of 0.5 mol/L potassium hydroxide-ethanol VS and a few glass beads.
Attach a reflux condenser, and heat for 60 minutes.
Add 1 mL of phenolphthalein TS and 50 mL of ethanol (99.5), and titrate immediately with 0.5 mol/L hydro-chloric acid VS.
Perform a blank determination in the same manner.
Calculate the saponification value by the following equation: 45 – 55.
Saponification value = (a - b) x 28.05/M
Saponification value Introduce about 4 g of Polysorbate 80 into a 250-mL borosilicate glass flask.
Add exactly 30 mL of 0.5 mol/L potassium hydroxide-ethanol VS and a few glass beads.
Attach a reflux condenser, and heat for 60 minutes.
Add 1 mL of phenolphthalein TS and 50 mL of ethanol (99.5), and titrate immediately with 0.5 mol/L hydro-chloric acid VS.
Perform a blank determination in the same manner.
Calculate the saponification value by the following equation: 45 – 55.
Saponification value = (a - b) x 28.05/M
Proposed translations
(Russian)
| 4 +1 | раствор гидроксида калия в этаноле |
Leila Usmanova
|
Proposed translations
+1
26 mins
Selected
раствор гидроксида калия в этаноле
с концентрацией 0.5 mol/L
4 KudoZ points awarded for this answer.
Comment: "Спасибо! "
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