water solubility in dichloromethane

Dichloromethane (Methylene Chloride) Hazards

Dichloromethane (also commonly known as Methylene Chloride Methylene Dichloride Di-clo and DCM) is a clear slightly sweet smelling organic liquid chemical solvent which can be pose significant workplace safety risks if strict handling instructions are not followed Common Uses for Dichloromethane

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Calculate reagent log P values to

water vs a simple organic compound like octanol or hexane can provide a guideline for predicting its solubility characteristics in other aqueous and organic solvents For example a peptide with a measured log P equal to 1 indicates that its concentration is at a 10:1 ratio in organic to aqueous phase

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Material Safety Data Sheet

720 mg/m3 STEL (listed under Dichloromethane) 9 PHYSICAL AND CHEMICAL PROPERTIES APPEARANCE: Clear colorless liquid PHYSICAL STATE: Liquid MOLECULAR WEIGHT: 84 94 CHEMICAL FORMULA: CH2Cl2 ODOR: Mild sweet (similar to Chloroform) SPECIFIC GRAVITY (water = 1 0): 1 33 SOLUBILITY IN WATER (weight %): 1 32 gm/ 100gm 77F (25C) pH: Not applicable

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Solubility Guide to Solubility So

Guide to Solubility SoSolubility Solubility as g/mL at 20C ≥ 1000 Excellent Solubility 1000 Good Solubility 500 Moderate Solubility 100 Low Solubility 10 Insoluble N/D No Data Chemical pesticides have become an integral part of the agricultural toolbox offering protection to crops from destructive pests

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Dichloromethane

Chemical Name: Dichloromethane Chemical Formula: C-H2-Cl2 4 First Aid Measures Eye Contact: Check for and remove any contact lenses In case of contact immediately flush eyes with plenty of water for at least 15 minutes Cold water may be used Get medical attention immediately

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Dichloromethane

It has a moderate water solubility of 20 g/l and a low tendency to adsorb to particles and sediments Because of its high volatility dichloromethane is expected to evaporate rapidly from water bodies It is also degraded in water between 1 and 6 days by reactions with

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IUPAC

The solubility of water (2) in dichloromethane (1) has been reported from 19 laboratories The solubility measurements cover the 253 to 313 K temperature range as represented in Figure 2 The data reported have been considered for inclusion in the smoothing equation with the following exclusions The data of Bakowski and Terszczanovicz (ref 12) Niini (ref 13) Donahue and Bartell (ref 15

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ChemInform Abstract: Solubility Data: Dichloromethane

ChemInform Abstract: Solubility Data: Dichloromethane—Water System ChemInform Abstract: Solubility Data: Dichloromethane—Water System Horvath A L 1999-01-16 00:00:00 ChemInform is a weekly Abstracting Service delivering concise information at a glance that was extracted from about 100 leading journals To access a ChemInform Abstract of an article which was published elsewhere

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Alcohol solubility

Solubility of alcohols is therefore determined by the stronger of the two forces Because of the strength of the attraction of the OH group first three alcohols (methanol ethanol and propanol) are completely miscible They dissolve in water in any amount Starting with the four-carbon butanol the solubility of alcohols is starting to decrease

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organic salt soluble in water but not dichloromethane e

2 Of the four compounds on the previous page find the most acidic proton in each structure Then choose the most acidic molecule of the four as a result 3 Match the following water solubility values with the correct structures below: 0 015 g/100 mL 0 047 g/100 mL 0 5 g/100 mL 3 6 g/100 mL 8 3 g/100 mL N OH NH 2 4 When performing the gravity filtration of sucrose from dichloromethane

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organic chemistry

Wikipedia gives dichloromethane's solubility in water as $20 mat{frac{g}{l}}$ which is approximately 1:50 w/w but ratios are usually understood v/v (weight/weight versus volume/volume) $endgroup$ – Jan Sep 30 '15 at 9:57 $begingroup$ Jan That's a good start for an answer $endgroup$ – Martin - マーチン ♦ Sep 30 '15 at 11:11 1 $begingroup$ it is not because it can't

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[PDF] Solubility of caffeine in water ethyl acetate

−− The solubility of caffeine in water ethyl acetate ethanol carbon tetrachloride methanol chloroform dichloromethane and acetone were measured by a gravimetrical method from (298 to 323) K and the solubility data was correlated against temperature The solubility of caffeine in chloroform and dichloromethane was high compared with other solvents Keywords−− Caffeine Solubility

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Solubility

Solubility is a characteristic physical property referring to the ability for a given substance the solute to dissolve in a solvent It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium The resulting solution is called a saturated solution Certain liquids are soluble in all proportions with a given solvent such as ethanol in water

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Dichloromethane

Dichloromethane is a member of the class of chloromethanes that is methane in which two of the hydrogens have been replaced by chlorine A dense non-flammible colourless liquid at room temperature (b p 40℃ d = 1 33) which is immiscible with water it is widely used as a solvent a paint stripper and for the removal of caffeine from coffee and tea

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EXTRACTION OF CAFFEINE FROM TEA

Extraction of Caffeine from Tea Although chlorophylls have some solubility in dichloromethane the other pigments do not Thus the dichloromethane extraction of a basic tea solution removes nearly pure caffeine which has a slight green color from the chlorophyll impurity Shanbhag Caffeine Extraction 2006 After the extraction procedure the organic solution of dichloromethane and

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Polar and Non

Water and Pentanol Water and pentanol have a lower solubility than expected Why? Although both solvents have polar groups attached the proximity and strength of the hydrogen bonds between water molecules will be much greater than when pentanol is in the mix with its long non-polar hydrocarbon tail interrupting the hydrogen bonding of the water molecules surrounding it

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How is molecular polarity related to solubility?

Water is a polar solvent: the O end has a partial negative (δ^-) charge and the H ends have δ^+ charges When you put the salt in water the δ^+ ends of the water molecules surround the Cl^- ions from the NaCl and the δ^- ends of the water surround the Na^+ ions of the NaCl The ions become solvated (hydrated)

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SOLUBILITY OF METALS

SOLUBILITY OF METALS Precipitation is the process of producing solids within a solution In metals removal it is desirable to precipitate as much metal solid as possible so that it can be removed or separated from water Once the metals precipitate and form solids they can then easily be removed and the water now with low metal concentrations can be discharged safely Solubility of Metals

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ISOLATION OF CAFFEINE FROM TEA EXPERIMENTAL

caffeine Cellulose is insoluble in water so it is not removed in the initial "brew" and the other compounds tend to be more water soluble than caffeine itself so they are not extracted by the dichloromethane The solubility of caffeine at room temperature is 2 2g/100mL in water at 25 oC (6 7g/100mL at 100 oC) and 18g/100mL in chloroform

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organic salt soluble in water but not dichloromethane e

2 Of the four compounds on the previous page find the most acidic proton in each structure Then choose the most acidic molecule of the four as a result 3 Match the following water solubility values with the correct structures below: 0 015 g/100 mL 0 047 g/100 mL 0 5 g/100 mL 3 6 g/100 mL 8 3 g/100 mL N OH NH 2 4 When performing the gravity filtration of sucrose from dichloromethane

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Solubility and Molecular Structure

13 2 Solubility and Molecular Structure Learning Objective To understand the relationship between solubility and molecular structure When a solute dissolves its individual atoms molecules or ions interact with the solvent become solvated and are able to diffuse independently throughout the solution (part (a) in Figure 13 4 Dissolution and Precipitation) This is not however a

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SOLUBILITY OF SODIUM METHOXIDE IN PURE AND MIXED

solvent [10] Hu et al reported that the solubility of dimethyl succinyl succinate in tetrahydrofuran acetic ether acetone acetonitrile 1-propanol ethanol and methanol pure solvents increased with increasing temperature [9] There are a lot of studies about solubility such as sodium sulfate solubility in (water + ethanol) mixed solvent in the

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