Syringe Filters for Organic Solvents

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Compatibility between your syringe filter’s media and the organic solvents you are filtering is of utmost importance when performing any type of application. Not all syringe filter membrane materials are recommended for all substances and chemical reagents. For example, some solvents may eat away certain membrane materials. With other syringe filters, certain solvents may make the membrane unstable or change the physical properties of your sample. It’s always best to do a trial test to ensure the syringe filter is compatible with the solvents you will be using for your process or application. This article provides a guide to syringe filters for organic solvents, with categories that indicate which syringe filters are not recommended for or have limited use with certain substances and chemical reagents.

Organic Solvents Overview

In general, solvents are substances that can dissolve or disperse one or more other substances. Organic solvents, according to the National Institute for Occupational Safety and Health (NIOSH) of the Centers for Disease Control and Prevention (CDC), are carbon-based solvents, which means they contain carbon in their molecular structure. Each organic solvent has its own characteristics, such as molecular weight, density, boiling point, melting point, solubility in water, and flash point. Various classes of chemicals can be used as organic solvents, some of which NIOSH recognizes as carcinogens. Organic solvents can be found in various consumer products, such as paints, glues, cleaning agents, adhesives, lacquers, etc. Other organic solvents are used to produce plastics, textiles, agricultural products, printing inks, dyes, and pharmaceutical products.

Chemical Reagents Overview

A reagent is a substance used in combination with other substances to create a chemical reaction in order to detect, examine, analyze, measure, or produce other substances. In a laboratory setting, reagents are used to provide better accuracy, reproducible performance and separation, consistency, and lower detection limits.

Syringe Filters With No or Limited Use With Organic Solvents or Chemical Reagents

This section lists the type of syringe filter membrane materials that have limited to no use with organic solvents. Each category is followed by the organic solvent, which includes acids, alcohols, alkalines, esters, hydrocarbons, halogenated hydrocarbons, ketones, nitrogen, oxides-ethers and other substances, that either should not be used or are limited in use with the indicated syringe filter. Syringe filters that fall under the not recommended category mean the filter’s membrane material is unstable in the presence of these organic solvents and chemical reagents. Syringe filters listed under the limited use category mean the filter’s membrane material may be used in short-term, noncritical applications due to moderate changes in physical properties that may impact your sample. NOTE: This information may not be inclusive of all organic solvents, reagents, and other substances, so it’s best to either do a trial test or contact us for complete information.   Type of Syringe Filter Membrane: Cellulose Acetate (CA) Not Recommended For: Acids: Acetic (greater than 25%); Glacial Acetic; Hydrochloric (greater than 25%); Hydrochloric Concentrated; Hydrofluoric; Nitric (greater than 25%); Nitric 6N (greater than 38%); Nitric Concentrated; Sulfuric (greater than 25%); Sulfuric 6N (greater than 29%); Sulfuric Concentrated; Trichloroacetic (greater than 10%); Alcohols: Butyl Cellosolve; Ethanol (greater than 98%); Methanol (greater than 98%); Alkalines: Ammonium Hydroxide (greater than 25%); Sodium Hydroxide 3N (greater than 12%); Esters: Amyl Acetate; Butyl Acetate; Ethyl Acetate and Methyl Acetate; Methyl Cellosolve Acetate; Hydrocarbons: Tetrakin Decalin; Halogenated Hydrocarbons: Carbon Tetrachloride; Chloroform; Methylene Chloride; Monochlorobenzene; Trichloethylene; Ketones: Acetone; Cyclohexanone; Methyl Ethyl; Methyl Isobutyl; Nitrogen: Acetonitrile; Aniline; Diethylacetamide; Dimethylformamide (DMF); Pyridine; Triethanolamine; Oxides-Ethers: Dimethylsulfoxide (DMSO); Dioxane and Tetrahydrofuran; Other Substances: Hydrogen Peroxide (greater than 30%); Pyridine. Limited Use With: Acids: Acetic (greater than 5%); Formic (greater than 25%); Hydrochloric (greater than 15%); Phosphoric (greater than 25%); Alcohols: Amyl; Benzyl; Butyl; Ethanol (greater than 70%); Ethylene Glycol; Glycerol; Isobutyl; Isopropanol; Methyl Cellsolve; Propylene Glycol; Alkalines: Formalin (greater than 30%); Esters: Amyl Propyl and Butyl Acetate; Isopropyl Acetate; Hydrocarbons: Hexane; Xylene; Kerosene Gasoline; Toluene Benzene; Oxides-Ethers: Ethyl Ether; Other Substances: Formaldehyde Solution (greater than 30%).     Type of Syringe Filter Membrane: Glass Fiber Not Recommended For: Alcohols: Benyzl.     Type of Syringe Filter Membrane: Nylon Not Recommended For: Acids: Acetic Glacial; Formic (greater than 25%); Hydrochloric (greater than 25%); Hydrochloric Concentrated; Hydrofluoric; Nitric (greater than 25%); Nitric 6N (greater than 38%); Nitric Concentrated; Phosphoric (greater than 25%); Sulfuric (greater than 25%); Sulfuric 6N (greater than 29%); Sulfuric Concentrated; Trichloroacetic (greater than 10%); Halogenated Hydrocarbons: Carbon Tetrachloride; Chloroform; Monochlorobenzene; Trichloethylene. Limited Use With: Acids: Acetic (greater than 25%); Boric; Hydrochloric (greater than 15%); Alcohols: Benzyl; Butyl Cellosolve; Isobutyl; Methyl Cellsolve; Alkalines: Formalin (greater than 30%); Halogenated Hydrocarbons: Methylene Chloride; Ketones: Cyclohexanone; Nitrogen: Diethylacetamide; Other Substances: Hydrogen Peroxide (greater than 30%).   Type of Syringe Filter Membrane: Polyethersulfone (PES) Not Recommended For: Acids: Nitric Concentrated; Sulfuric (greater than 25%); Sulfuric 6N (greater than greater than 29%); Sulfuric Concentrated; Alcohols: Amyl; Ethanol (greater than 98%); Esters: Butyl Acetate; Ethyl Acetate and Methyl Acetate; Hydrocarbons: Xylene; Toluene Benzene; Halogenated Hydrocarbons: Carbon Tetrachloride; Chloroform; Methylene Chloride; Trichloethylene; Ketones: Acetone; Cyclohexanone; Methyl Ethyl; Nitrogen: Acetonitrile; Diethylacetamide; Dimethylformamide (DMF); Pyridine; Oxides-Ethers: Dimethylsulfoxide (DMSO); Other Substances: Hydrogen Peroxide (greater than 30%); Pyridine. Limited Use With: Acids: Hydrochloric Concentrated; Nitric 6N (greater than 38%); Alcohols: Benzyl; Butyl; Ethanol (greater than 70%); Isobutyl; Methanol (greater than 98%); Esters: Amyl Acetate; Hydrocarbons: Hexane; Oxides-Ethers: Dioxane and Tetrahydrofuran.     Type of Syringe Filter Membrane: Polypropylene (PP) Not Recommended For: Hydrocarbons: Benzene; Hexane; Toluene Benzene.     Type of Syringe Filter Membrane: Polytetrafluoroethylene (PTFE) and Hydrophilic PTFE Not Recommended For: Halogenated Hydrocarbons: Carbon Tetrachloride. Limited Use With: Alcohols: Benzyl; Butyl; Isobutyl; Methyl Cellsolve.     Type of Syringe Filter Membrane: Polyvinylidene Fluoride (PVDF) and Hydrophilic PVDF Not Recommended For: Acids: Hydrochloric Concentrated; Nitric Concentrated; Sulfuric Concentrated; Halogenated Hydrocarbons: Carbon Tetrachloride; Methylene Chloride; Ketones: Acetone; Cyclohexanone; Isopropylacetone; Methyl Ethyl; Methyl Isobutyl; Nitrogen: Acetonitrile; Diethylacetamide; Dimethylformamide (DMF); Triethanolamine; Oxides-Ethers: Dimethylsulfoxide (DMSO). Limited Use With: Acids: Hydrochloric (greater than 15%); Alcohols: Benzyl; Isobutyl; Alkalines: Ammonium Hydroxide (greater than 25%); Esters: Methyl Acetate; Oxides-Ethers: Dioxane and Tetrahydrofuran.     Type of Syringe Filter Membrane: Regenerated cellulose (RC) Not Recommended For: Acids: Sulfuric; Nitric (greater than 25%); Phosphoric; Hydrochloric; Alcohols: Phenol; Halogenated Hydrocarbons: Chloroform; Nitrogen: Dimethylformamide (DMF); Oxides-Ethers: Tetrahydrofuran (THF).     Type of Syringe Filter Membrane: Anopore Not Recommended For: Acids: Hydrochloric; Sulfuric; Alkalines: Ammonium Hydroxide; Sodium Hydroxide (NaOH).

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