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CAUTION: Many of these fluids are extremely dangerous and corrosive. Our equipment is intended to be used by laboratory professionals who are trained in handling very dangerous materials.​

Note, this table is not a statement of chemical compatibility—some of these materials may damage or destroy the pump over time.

​​​Download a PDF version here.​​

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Pumping Fluids General Hazards & Concerns UL Allowed for HazLoc Corrosion Issues Seal Compatibility Issues References
Chlorinated Organic (Hydrocarbon) Solvents, e.g. Methylene Chloride, Chloroform, Methyl Chloride, Tetrachloroethane… Toxic & Environmentally Unfriendly; Recommend operating under venthood.   OK OK Kenneth M. Pruett, Chemical Resistance Guide for Metals and Alloys(Compass Publications: 1995)
Alcohols, e.g. Methanol (Wood Alcohol), Ethanol (Grain Alcohol), Propanol (Rubbing Alcohol) Flammable & Possibly Toxic; Recommend operating in well ventilated area. Methanol, Isopropanol (sic) OK OK UL HazLoc, UL File# E221183 (for USA only)
Liquid Organic Amines, e.g. Analine, Triethylamine (TEA)… Obnoxious, Toxic & Flammable; Recommend operating under a venthood.   OK OK  
Polar Organic Solvents, e.g. Acetonitrile, Ethyl Acetate, Acetone, Methyl Ethyl Ketone (MEK), Acetophenone, Cyclohexanone… Flammable & Toxic; Recommend operating in well ventilated area. Acetone, Acetonitrile OK OK UL HazLoc
Acrylic acid (2-Propenoic acid), Methacrylic acid, Methyl Methacrylate Flammable, Toxic, Corrosive & Obnoxious; Easily Polyermizes   OK OK  
Solids Hydrocarbons, e.g. Naphthelene Flammable & Toxic; Recommend operating in well ventilated area; Must heat all lines, cylinder and cap above melting point; 85C for Naphthalene.   OK OK  
Liquid Hydrocarbons, e.g. Benzene, Toluene, Xylenes, Hexane, Gasoline, Diesel fuel & Kerosene… Flammable & Toxic; Recommend operating in well ventilated area. Benzene, Ethylbenzene, Hexane, Heptane, Gasoline, Diesel fuel & Jet fuel OK OK UL HazLoc
LP (Liquified-Gas) Hydrocarbons, e.g. Methane, Ethane, Ethylene, Propane, Propylene, Butane, Isobutylene & Butadiene… Very Flammable & Explosive; Gases generally have poor refill efficiencies;  Recommend operating under venthood & purging behind piston seals with Nitrogen or Argon gas. Methane, Ethane, Ethylene, Propane, Propylene, Butane, Isobutylene & Butadiene  OK OK UL HazLoc
Carbon Dioxide (Supercritical) Generally safe, nonflammable and not corrosive but possible Asphyxiate.   OK OK  
Aqueous Sodium Chloride solutions, e.g. Saline & Brine Generally safe but corrosive; See Technical Bulletin TB04.   Cylinder wall may suffer damage on long term. Recommend frequent rinsing with distilled water, especially before dormant periods (e.g. weekends, holidays, vacation…) and after use. Titanium is OK with Sodium Chloride up to saturation & 60C. Recommend wash gland with water. ISCO Syringe Pump Technical Bulletin TB04, "Pumping Salt Solutions and Brines with ISCO Syringe Pumps" & Compass
Hydrogen Sulfide (Liquified-Gas) or Aqueous Solutions Obnoxious, Toxic & Flammable; Recommend pumping under a venthood; Gases generally have poor refill efficiencies.   OK Can form Sulfur passed piston seal due to normal leakage and exposure to air; Sulfur will eventually erode the seal; Recommend purging behind piston seal with Nitrogen or Argon gas.  
Dimethyl Disulfide Obnoxious & highly flammable; High boiling point liquid; Recommend pumping under a venthood; Strong garlic-like odor.   OK Recommend purging behind piston seal with Nitrogen or Argon gas, few mL/min flow, to prevent accumulation of flammable vapor near pump.  
Titanium Tetrachloride (liquid) Avoid exposure to water and water vapor; Highly reactive to water and air; Highly Toxic vapors; Recommend pumping under a venthood.   OK with Stainless Steels, e.g. 304 and Nitronics 50; Recommend purging behind piston seal with dry Nitrogen or Argon gas. Recommend wash gland with clean, fresh, anhydrous Hexanes; Can attack Chemraz and Kalrez through swelling; OK with Viton & PTFE.  
Quarternary Ammonium Salt Solutions Toxic & Corrosive.   Recommend frequent rinsing with distilled water, especially before dormant periods or after use. Recommend wash gland with fresh water.  
Sodium Hydroxide (Aqueous) Solution, 50% w/w, Saturated, (19M) 50C Toxic & Corrosive.   Recommend frequent rinsing with distilled water, especially before dormant periods or after use; Ti OK upto 25% at boiling   Compass
Aqueous Ammonium Hydroxide Highly Obnoxious, Corrosive and Toxic; Recommend pumping under a venthood.   Recommend frequent rinsing with distilled water, especially before dormant periods or after use. Unknown Unknown
Anhydrous Ammonia Highly Obnoxious, Flammable and Toxic; Recommend pumping under a venthood.   OK Recommend virgin, i.e. no carbon fiber fillers, PTFE seals. ISCO Syringe Pump Manual & UL HazLoc
Sulfuric Acid (Aerated), 96% (18M) 50C Toxic & Corrosive.   OK with 304, 316 & Nitronics 50; OK with Hastelloy up to 60C; OK with Titanium only up to 5% 35C. OK HPAlloys Nitronics 50 Data Bulletin & Compass
Nitric Acid, 68% (15M) 45C Toxic & Corrosive.   OK with 304, 316, Nitronics 50 & Titanium; OK with Hastelloy C up to 55C . OK HPAlloys & Compass
Hydrochloric Acid, 2% (0.5M) 35C Toxic, Obnoxious & Corrosive.   OK with Nitronics 50; OK with Hastelloy C up to 14% (4M) 60C; Ti OK at <1% at 95F. OK HPAlloys & Compass
Phosphoric Acid (Aerated), 85% (14.7M) 55C Toxic & Corrosive.   OK with 304, 316 & Nitronics 50; OK with Hastelloy C up to 90C; OK with Titanium only to 35% 20C. OK HPAlloys & Compass
Acetic Acid (Aerated), 100% (17.4M) 50C Toxic, Obnoxious & Corrosive.   OK with 316 & Nitronics 50; OK with Hastelloy C up to 150C; OK with Titanium only to 20C. OK HPAlloys & Compass
Formic Acid, 40% (12M) 50C Toxic, Obnoxious & Corrosive.   OK with 304, 316 & Nitronics 50; OK with Hastelloy C up to 90% 90C; OK with Titanuim at 90% 60C. OK HPAlloys & Compass
Ferric Chloride (FeCl3) solution, 10% 25C Toxic, Obnoxious & Corrosive.   OK with Nitronics 50. OK HPAlloys
Chlorinated Bleach, 6.25% Sodium Hypochlorite solution, 25C Toxic & Corrosive; Liberated Chlorine Cl2 gas can be obnoxiuos.   OK with 316 & Nitronics 50; OK with Hastelloy C up to 50% 45C; Titanium unknown. OK Compass
Boron Trifluoride, BF3, dry at 100% 150C, or wet at 100% 100C, or liquid 100% 45C Very Toxic. Strong fluorinating agent.   OK with 304, 316 & Nitronics 50; OK with Hastelloy C at only 45C; Titanium unknown. OK Compass
Nitrogen Tetraoxide,N2H4, 20C Extremely Toxic! Strong oxidizing agent; Recommend pumping under a venthood.   OK with 316 , 304 & Nitronics 50; Titanium unknown. OK Compass
Hydrazine, N2H4, 100% 60C Extremely Toxic! Rocket monopropellant fuel; Recommend pumping under a venthood.   OK with 316 & Nitronics 50; OK with 304 at 20C; Titanium unknown. OK Compass
Hydrogen Fluoride, anhydrous liquid Extremely Toxic and Corrosive against Oxygen-containing compounds, e.g. glass & PEEK! Recommend pumping under a venthood.   Attacks the PEEK wear ring! Replace with UHDPE wear ring, but compromises the high pressure spec; Recommend purging behind piston seal with dry Nitrogen or Argon gas. OK Compass
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Wetted Parts List

Same materials for 260X, 500X, 1000X, 65X pumps

Part Description Part Number Material Description Part Number Additional Information
Piston Base 601243534 Nitronic 50 SST 004-2951-32 UNS S20910, XM-19, High Strength
Piston Retainer 601243414 Nitronic 50 SST 004-2951-32 Alternate for Nitronic 50 is Hastelloy-C
Piston Seal 202909106 Graphite-Filled PTFE Vendor material Hastelloy-C Spring, alternate Elgiloy
Cylinder 601243576 Nitronic 50 SST Vendor material UNS S20910, Type XM-19, Hot rolled or Cold worked
Cylinder Cap 601243710 Nitronic 50 SST 004-2952-16 22%Cr-12%Ni-2%Mo-5%Mn-0.3%N-Fe
Cylinder Seal 691243444 Turcon® Vendor material Trademark of Trelleborg, now Shamban
Pressure Transducer 691243708 Titanium Vendor material Transducer membrane material
Transducer Seal 601243713 Nickel 200, 99.9% 009-0701-00 Gold plated per 1090808, alternate solid 24K Gold
Wear Ring 601243537 Bearing-Grade PEEK 029-3000-02 Not directly wetted but exposed due to normal leakage