Fractional Precipitation definition of Fractional Precipitation in the Free Online Encyclopedia.

fractional precipitation [¦frak·shən·əl prə‚sip·ə′tā·shən]

(analytical chemistry)

Method for separating elements or compounds with similar solubilities by a series of analytical precipitations, each one improving the purity of the desired element.

Fractional Precipitation

a method of separating a mixture of substances by means of their gradual precipitation from a solution. The possibility of quantitative separation of a mixture depends on the ratio of the original concentrations of compounds being precipitated and on the values of their solubility product. Coprecipitation of a more soluble compound with a less soluble one is possible in the process of fractional precipitation. The methods of fractional precipitation, which are generally used for separation of mixtures of substances that are close in terms of chemical properties and solubility, are extremely labor-intensive.

REFERENCE

Kolthoff, I. M., and E. B. Sandell. Kolichestvennyi analiz, 3rd ed. Moscow-Leningrad, 1948. (Translated from English.)

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No references found	Aventis Behring GmbH (Marburg, Germany) has patented a process for the preparation in pure form of the protease activating blood clotting factor VII and/or its proenzyme by the use of a chromatography separation processes and/or fractional precipitation. Aventis obtains United States patent by BIOTECH Patent News	Fracastoro, Girolamo Frachon, Benoit Frachon, Benoît fractable fractal fractal compression fractal dimension fractal dimensionality fractal geometry fractal persistence length Fractals Fraction fraction defective fraction in lowest terms fraction kill hypothesis Fractional Analysis Fractional and Integral Parts of a Number Fractional Condensation Fractional Crystallization fractional distillation fractional equation fractional factorial experiment fractional gas-flow curve fractional horsepower motor fractional ideal Fractional Precipitation fractional quantum Hall effect fractional replicate fractional sampling fractional sine wave fractional T1 fractional T3 Fractional Units fractionating column fractionation fractionator fractoconformity Fractography fracton fracton dimension Fracture fracture cleavage fracture dome fracture load Fracture of Minerals fracture pressure fracture strength fracture stress fracture system fracture test fracture toughness	Fractional Hypoxic Volume Fractional ideal Fractional Inhibitory Concentration Index fractional interest Fractional Kidney Weight Fractional knapsack problem Fractional Linear Program Fractional Load Planning Fractional Loading Factor Fractional Lower-Order Moments Fractional Lower-Order Statistics fractional monetary unit Fractional Moving Blood Volume Fractional Muscle Protein Synthesis Fractional N2 Concentration Fractional Noise Fractional Orbital Bombardment Fractional Orbital Bombardment System Fractional Order Differential Equation Fractional Out-of-Band Energy Fractional Ownership Aviation Rulemaking Committee Fractional Palmitate Oxidation Rate Fractional Part of the Relative Frequency Offset Equation Fractional Potassium Excretion Fractional Precipitation fractional process Fractional Product Inefficiency Fractional Quantum Hall Fractional Quantum Hall Effect Fractional Quantum Hall Effect Fractional Quantum Hall Fluid Fractional Quantum Hall Liquid Fractional Real Estate Investment Plan Fractional Removal Rate fractional replicate Fractional Reserve Lending fractional sampling Fractional share Fractional Shares Fractional Shortening Fractional Shortening Index Fractional Shortening Z-Score Fractional Shortening-Velocity Ratio fractional sine wave Fractional sodium excretion Fractional statistics Fractional Synthetic Rate Fractional T-1 Fractional T-1 Carrier Fractional T1

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Aventis Behring GmbH (Marburg, Germany) has patented a process for the preparation in pure form of the protease activating blood clotting factor VII and/or its proenzyme by the use of a chromatography separation processes and/or fractional precipitation.

Aventis obtains United States patent by BIOTECH Patent News

fractal dimensionality

fractal geometry

fractal persistence length

Fractals