Crucibles · Beakers · Tubes · Dishes · Custom Fabrications. Quartz labware offers exceptional thermal shock resistance (ΔT up to 1100°C), UV to IR transparency, and near-inert chemical behavior. Essential for semiconductor R&D, high-temperature materials processing, analytical chemistry, and cleanroom environments.
Quartz labware refers to scientific glassware manufactured from fused silica (amorphous SiO₂). Unlike conventional borosilicate glass, quartz withstands extreme temperatures (up to 1150°C continuous), rapid thermal cycling, and aggressive chemicals (except HF). Its high ultraviolet transparency makes it indispensable for photochemical reactions and UV spectroscopy. Common items include crucibles for ashing, beakers for high-purity digestions, quartz tubes for furnaces, and custom evaporating dishes. This guide covers the most frequently procured quartz labware types, their specifications, and B2B sourcing considerations for research institutions, QC labs, and semiconductor fabs.
Quartz labware is fabricated from fused silica, a glass form of silicon dioxide with extremely low coefficient of thermal expansion (CTE 0.54 × 10⁻⁶/K). Key properties include:
Product Alias: fused silica labware, quartz glassware, high-purity quartz crucible, UV quartz beaker, silica laboratory vessels, quartz reaction tube.
High-purity fused silica crucibles for ashing, fusion, and high-temperature material synthesis. Available with smooth or frosted surfaces, with or without lids. Common capacities: 5ml, 10ml, 15ml, 30ml, 50ml, 100ml up to 500ml. Used in gravimetric analysis, metal melting, and thermal gravimetric analysis (TGA).
Transparent quartz beakers (low form / tall form) and Erlenmeyer flasks for extreme acid digestions, UV photochemical reactions, and high-purity sample preparation. Sizes from 25ml to 2000ml. Excellent for HF‑free digestion of geological and ceramic samples.
Open-ended quartz tubes (round or square) and closed-bottom test tubes for furnace work, chemical vapor deposition, and sample containment. OD ranges 8mm to 80mm, lengths from 100mm to 1500mm. Test tubes feature round bottoms or flat bottoms, with or without rims.
Shallow quartz dishes for evaporation, crystallization, and residue analysis. Flat bottom with smooth or ground rim. Diameters from 40mm to 200mm. Ideal for gravimetric determination of solids in liquids.
UV-grade quartz cuvettes for spectrophotometry (10mm path length, 1–100mm path). Matched pairs for precise absorbance measurements. Also available with screw caps for anaerobic studies.
We manufacture custom items: combustion boats, bell jars, immersion tubes, condensers, and reaction vessels with specific ports. Provide drawings or dimensional sketches.
Quartz crucibles and dishes withstand muffle furnace temperatures up to 1150°C without devitrification. Used for determining ash content in polymers, food, and coal.
Quartz tubes and beakers allow deep UV penetration (185nm, 254nm) for photolysis, UV curing, and water purification experiments. No UV absorption like borosilicate.
Quartz beakers and flasks resist hot aqua regia, HF‑free acid mixtures. Low elemental background ensures accurate ICP‑MS/AA results.
Special quartz crucibles with flat bottoms or pin-type for thermogravimetric analysis. Inert up to 1200°C, no reaction with most samples.
Quartz beakers, tanks, and carriers used in RCA cleaning, Piranha etch, and other high-purity wafer cleaning steps. Excellent chemical durability and low particle shedding.
Quartz tube furnaces act as reaction chambers for epitaxial growth of graphene, 2D materials, and oxide thin films. High transparency allows in-situ observation.
Challenge: High-purity trace metal analysis required digestion in hot HF‑free acid mixture. Borosilicate beakers introduced sodium and boron contamination.
Solution: 250ml transparent quartz beakers with cover. Acid mixture (HNO₃ + HCl) heated at 180°C.
Result: Blank levels of trace elements reduced by >90%; detection limits improved tenfold.
Challenge: Standard PFA tanks for SC-1 cleaning showed limited temperature resistance (120°C). Needed 180°C bath for improved particle removal.
Solution: Custom-fabricated quartz rectangular tanks (300×200×150mm) with 5mm wall thickness.
Result: Stable at 190°C, no metal contamination, and easy visual inspection of wafer racks.
Challenge: High-temperature ashing (950°C) of zeolite catalysts caused cracking of porcelain crucibles. Frequent breakage disrupted workflow.
Solution: 30ml quartz crucibles with lids. Quartz withstands thermal cycling without fracture.
Result: Crucible life extended from 2 weeks to over 1 year; accurate ash weight retention.
We offer both clear transparent quartz (fused silica) and milky translucent quartz (for special thermal applications). Certificates of analysis for trace metals (by ICP-MS) available on request.
| Property | Quartz (Fused Silica) | Borosilicate (e.g., Pyrex®) |
|---|---|---|
| Max continuous temperature | 1150°C | 280°C |
| Thermal shock ΔT | ~1100°C | ~150°C |
| UV transmission (254nm) | >90% | <30% (blocks UV) |
| Coefficient of expansion (CTE) | 0.54 × 10⁻⁶/K | 3.3 × 10⁻⁶/K |
| Chemical resistance (HF excluded) | Excellent (inert) | Good (but alkali sensitive) |
| Metal extractables (Na, K, Fe) | Extremely low | Low to moderate |
| Cost (relative) | Higher (5–10x borosilicate) | Economical |
Quartz is the material of choice for extreme temperature, UV applications, and ultra-trace analysis. For routine lab work below 250°C, borosilicate is cost-effective.
We use virgin fused silica (GE 214, Heraeus, or equivalent). Low OH content (<30 ppm) and controlled metal impurities (<5 ppm total).
In-house glassblowing workshop for custom shapes: beakers with side arms, reactors with flanges, special crucible profiles. Rapid prototyping.
Secure foam‑lined cartons or wooden crates. We ship worldwide with full insurance and customs documentation.
| Standard / Spec | Details | Relevance |
|---|---|---|
| ASTM E438 – Class 1 | Standard specification for borosilicate glass; quartz referenced for high‑temp | Material classification |
| SEMI F57 | High-purity quartz for semiconductor applications | Trace metal limits |
| DIN ISO 3585 | Properties of borosilicate glass 3.3 (quartz not directly covered but used as reference) | General labware dimensions |
| HS Code typical | 7017.10 (laboratory glassware of fused quartz) or 7017.20 | Customs classification – confirm with broker |
We recommend continuous use up to 1150°C, and short-term (few hours) up to 1250°C. Above 1200°C devitrification may occur over time, reducing transparency but not mechanical integrity.
No. HF rapidly attacks silica. For HF work, use PTFE or platinum labware.
Use mild acid (dilute HCl or HNO₃) or alkaline cleaners (avoid strong bases that etch). Rinse with deionized water. For stubborn deposits, use aqua regia or a short soak in 10% HF (with caution, reduces thickness).
Common stocked sizes: 50ml, 100ml, 250ml, 500ml, 1000ml low form. Larger sizes (2000ml, 3000ml) made to order with 2–3 weeks lead time.
Yes, we supply 10mm path length quartz cuvettes, fluorescence grade (four clear windows or two frosted). Also available with PTFE stoppers.
Absolutely. We fabricate quartz reaction flasks with standard taper (24/40, 29/42) joints, spherical joints, or threaded connections.
Send us your required item type, capacity/dimensions, purity grade, and quantity. We’ll respond with a datasheet and competitive B2B pricing.
