35 mL PTFE Grinding Jar, Set of 2

The IPD9600-35PTFE is the 35 mL PTFE (Teflon) grinding jar set for the Benchmark Industrial IPD9600 BeadBlaster 96 Ball Mill Homogenizer — sold as set of 2 jars. PTFE (Teflon) is a chemical-resistant non-metallic jar material engineered for chemically aggressive workflows (strong acid / base / organic solvent) where stainless steel / tungsten carbide jar surfaces would corrode. Lowest-cost mid-volume jar option ($2,477) but lowest hardness — not for hard-sample workflows.

Key Specifications

Why PTFE Grinding Jars — Chemical-Resistance Workflows

PTFE (Teflon) is broadly chemical-resistant — compatible with:

• Strong acids (HCl, HNO₃, H₂SO₄, HF, aqua regia) where stainless steel would corrode
• Strong bases (NaOH, KOH) where stainless steel passive layer would degrade
• Organic solvents (acetone, chloroform, hexane, DMSO) where some elastomers would swell
• Surfactants and chaotropic agents (SDS, guanidine HCl, urea) at high concentrations

Trade-off: PTFE is soft — Mohs hardness ~2 (vs ~6 for stainless steel and ~9 for tungsten carbide). PTFE jars cannot process hard samples (mineral, ceramic, hard polymer) without unacceptable jar-wall wear. PTFE jars are for chemical-resistance workflows where samples are soft / aqueous / liquid-suspension (not hard mineral / fragment grinding).

IPD9600 Grinding Jar Material × Volume Matrix

Application Profile

Strong-acid digestion sample prep — acid-digestion workflows for ICP-MS / AAS / spectroscopy where stainless steel would corrode.

Organic solvent extraction sample prep — aggressive-solvent extraction workflows.

Soft-sample homogenization at chemically aggressive conditions — biological samples in strong-buffer chemistry where the sample itself is soft but the chemistry is aggressive.

Pharmaceutical / clinical-research workflows — workflows where regulated impurity standards require non-metallic vessel + chemical-resistance.

Method-development workflows — protocol-development workflows comparing jar materials for chemistry compatibility.

Multi-investigator facility procurement — facilities running mixed chemical-aggressive vs standard workflows benefit from PTFE jar inventory alongside stainless steel.

Why 35 mL Volume vs 25 mL or 50 mL

The 35 mL volume is mid-range — between the 25 mL standard mid-volume jars (IPD9600-25S / -25TC) and the 50 mL bulk-volume jar (IPD9600-50S). The 35 mL choice for the PTFE / ZrO₂ specialty-material variants likely reflects the chemical / mechanical engineering trade-off for these materials at this volume — confirm specific 35 mL volume rationale with Accuris technical support if relevant to workflow selection.

Ordering & Configuration

Pair with PTFE-coated bead. Pair with IPD9600-15PTFB (15 mm PTFE steel-core ball, $101) for fully PTFE-contact workflow.

Confirm chemical-resistance requirement. PTFE jars are over-engineered for standard workflows — confirm chemical-aggressiveness of the workflow justifies the procurement vs stainless steel sister.

Confirm at quote: chassis pairing, workflow chemical-resistance requirement, bead pairing (IPD9600-15PTFB recommended), and lead time.

Warranty: Per Benchmark Industrial standard accessory terms — confirm at quote.

Benchmark Industrial IPD9600 grinding-jar family (see family table above for full material × volume matrix).

Pick the 35 mL PTFE jar for chemically aggressive workflows; sister 35 mL zirconium oxide for metal-free + hardness; sister 25 mL stainless steel for standard mid-volume workflows.