Drying Ability of Anhydrous Sodium Sulfate on Wet Organic Solvents after Liquid-Liquid Partition.

DOI JASI Web Site PubMed 1 Citations 4 References Open Access

Bibliographic Information

Other Title
  • 液‐液分配抽出後の含水溶媒に対する無水硫酸ナトリウムの吸水効果
  • 調査・資料 液-液分配抽出後の含水溶媒に対する無水硫酸ナトリウムの吸水効果
  • チョウサ シリョウ エキ エキ ブンパイ チュウシュツ ゴ ノ ガン スイ ヨウバイ ニ タイスル ムスイ リュウサン ナトリウム ノ キュウスイ コウカ

Search this article

Description

Water concentration in organic solvents after liquid-liquid partition was determined by the Karl Fischer titration method. n-Hexane and petroleum ether showed quite low levels of water, such as 0.1 mg/mL. The water concentration in wet ethyl acetate was about 20∼30 mg/mL and that in diethyl ether was about 8∼10 mg/mL. Anhydrous sodium sulfate absorbed about 20∼25% of the water after vigorous mixing with wet ethyl acetate or diethyl ether. Wet acetonitrile extract from wet food, which contained about 60 mg/mL water after salting out with sodium chloride, was not dried at all with anhyfrous sodium sulfate treatment. Spiking n-hexane into wet ethyl acetate or wet diethyl ether was effective to exclude water. Spiking toluene into salted acetonitrile drove out water and dissolved sodium chloride. It can be concluded that the drying ability of anhydrous sodium sulfate towards wet organic solvents is poor, but it is effective in removing suspended water in solvents.

Journal

Citations (1)*help

See more

References(4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top