Product Description
I. Overview
The PTFE crucible is manufactured from high-purity PTFE resin through
cold pressing and high-temperature sintering. PTFE is chemically inert,
non-contaminating to samples, with a thermal stability range of -196℃ to 260℃.
PTFE crucibles are unaffected by hydrofluoric acid (HF) and are primarily
used for HF-based sample dissolution operations. Compatible with PTFE covers,
they are a cost-effective alternative to platinum crucibles, particularly
for applications requiring metal-ion-free digestion and pretreatment.
Available in sizes from 30ml to 250ml, widely used in geological sample
digestion, environmental sample pretreatment, trace analysis, and semiconductor
testing industries.
II. Core Performance Parameters
- Purity: High-purity PTFE with ultra-low metal leaching (Pb, U < 0.01ppb)
- Operating Temperature: -196℃ ~ 260℃, short-term up to 300℃
- Chemical Resistance: Resistant to HF, aqua regia, concentrated H₂SO₄, HNO₃, strong alkalis, and organic solvents
- Surface Properties: Non-stick, low friction coefficient, easy to clean
- Recommended Temperature: Routine use ≤ 250℃, maximum 280℃
III. Material & Workmanship
Manufactured from imported high-purity PTFE resin, precision cold-pressed in molds,
and sintered in high-temperature furnaces — ensuring dense structure, smooth surface,
and bubble-free finish. Uniform wall thickness and flat bottom ensure uniform
heat distribution during heating.
All products are assembled and packaged in cleanroom environments to ensure
contamination-free surfaces.
