Laboratory Quartz | High-Purity Fused Silica Labware & Custom Lab Components
FGQuartz manufactures high-purity laboratory quartz glass products for analytical chemistry, research laboratories and high-temperature experimental work. Our laboratory quartz range includes beakers, flasks, crucibles, evaporating dishes, test tubes, cuvettes, reaction vessels and fully custom fused silica labware — all produced from high-purity material with excellent chemical resistance and thermal stability.
Why Choose Laboratory Quartz Glass
Laboratory quartz (fused silica) offers a unique combination of properties that ordinary borosilicate glass cannot match. It remains stable at significantly higher temperatures, resists most acids and chemical reagents, provides excellent optical transparency from UV to near-infrared, and introduces minimal metallic contamination into sensitive analyses.
These advantages make high-purity fused silica the preferred material for:
– High-temperature digestion and ashing
– Trace-element and ultra-pure chemical analysis
– UV spectroscopy and optical measurements
– Aggressive chemical reactions
– Long-term high-temperature experiments
FGQuartz laboratory quartz products are manufactured under strict quality control to ensure consistent purity and performance for demanding laboratory environments.
Laboratory Quartz Product Range
Quartz Beakers & Flasks
High-purity quartz beakers and conical flasks for heating, mixing and chemical reactions. Resistant to thermal shock and most laboratory reagents. Available in standard and custom volumes.
Quartz Crucibles & Dishes
Crucibles and evaporating dishes for ashing, ignition, fusion and high-temperature sample preparation. Excellent thermal stability and low contamination for analytical work.
Quartz Test Tubes & Tubing
Clear fused silica test tubes and laboratory tubing for high-temperature reactions, sample handling and custom apparatus construction. Available in various diameters and lengths.
Quartz Cuvettes & Cells
Optical quartz cuvettes and flow cells for UV-Vis and spectroscopic analysis. High transmission in the ultraviolet range with excellent optical clarity and chemical resistance.
Reaction Vessels & Custom Labware
Multi-neck flasks, reaction chambers, distillation apparatus and specialized vessels fabricated to customer drawings for research and pilot-scale work.
Quartz Plates, Windows & Covers
Observation windows, cover slips, substrates and flat plates for high-temperature viewing, optical experiments and specialized laboratory setups.
Key Advantages of FGQuartz Laboratory Quartz
- High chemical purity — minimizes metallic contamination in sensitive analyses
- Excellent chemical resistance — withstands most acids (except HF and hot phosphoric acid) and organic solvents
- Superior thermal performance — continuous use at high temperatures with outstanding thermal shock resistance
- Broad optical transmission — from deep UV through visible to near-infrared
- Low thermal expansion — maintains dimensional stability during rapid temperature changes
- Custom fabrication capability — standard labware plus fully custom components made to drawing
- Consistent quality — produced under controlled conditions for reliable laboratory performance
Typical Laboratory Applications
- Analytical chemistry and sample digestion
- Trace metal and ultra-pure chemical analysis
- High-temperature ashing, ignition and fusion
- UV-Vis spectroscopy and optical measurements
- Chemical synthesis and reaction studies
- Materials research and high-temperature experiments
- Pharmaceutical and environmental laboratory work
- Custom apparatus for specialized research projects
Standard Labware & Custom Fabrication
FGQuartz supplies both standard laboratory quartz products and fully custom components. Standard items such as beakers, crucibles and test tubes are available in common sizes for quick delivery. For specialized research needs, we fabricate custom reaction vessels, multi-port flasks, optical cells and complex apparatus according to customer drawings using CNC machining and oxy-hydrogen flame forming.
Whether you need a single prototype or a small production batch of laboratory quartzware, our engineering team can support material selection, design review and manufacturing.
Manufacturing Capabilities for Laboratory Quartz
Precision Forming & Drawing
High-quality fused silica tubes, rods and basic shapes produced with controlled dimensions for laboratory use.
CNC Diamond Machining
Custom plates, windows, holders and precision parts machined from solid fused silica for optical and structural laboratory applications.
Oxy-Hydrogen Flame Working
Beakers, flasks, multi-neck vessels, closed-end tubes and complex assemblies fabricated by skilled flame forming and properly annealed.
Frequently Asked Questions
Common questions from laboratory managers, analytical chemists and research scientists about high-purity quartz labware.
Yes. FGQuartz manufactures replacement ICP torch assemblies and individual torch tube components compatible with the major ICP instrument platforms including Perkin-Elmer Optima and NexION series, Agilent 5000 and 7000 series, Thermo Scientific iCAP and iCap-Q series, Horiba Ultima Expert, and Spectro Arcos. Mini-torch assemblies for low-flow argon operation and demountable torch systems for difficult matrix applications are also available. For ICP models not listed, the outer tube dimensions and injector configuration can be specified by the customer and FGQuartz will fabricate a compatible replacement.
Yes. FGQuartz accepts formal drawings in DXF, STEP, or IGES format and also produces custom labware from dimensioned sketches, photographs of sample vessels, or verbal descriptions. Non-standard crucible volumes, digestion vessels with specific neck and opening geometries, reaction tubes matched to particular furnace internal diameters, and custom flow cells with defined path lengths are all produced at the Lianyungang facility. The engineering team prepares a manufacturing drawing for customer approval before production begins. Prototype quantities from a single piece are accepted, and repeat orders follow the same programme without additional qualification lead time.
For routine cleaning, a soak in hot dilute nitric acid (10–20% HNO₃) followed by thorough rinsing with high-purity deionised water is the standard protocol for trace element laboratories, effectively removing surface-adsorbed metals. Ultrasonic cleaning in dilute acid is effective for tube interiors and other hard-to-reach surfaces. For carbonaceous deposits from ashing, briefly heating the empty crucible to 900–1000 °C burns off residual carbon. Avoid hydrofluoric acid, strongly alkaline detergents, and abrasive scouring materials. Never use HF or fluoride-containing cleaners — they will etch the quartz surface irreversibly. Mechanical abrasion should also be avoided, as scratches create stress concentration points that weaken the vessel for future thermal cycling.
No. Hydrofluoric acid attacks fused silica by dissolving the SiO₂ network, etching the surface and eventually degrading or destroying the vessel. Quartz laboratory equipment must not be used with HF or fluoride-based cleaning agents. For digestion procedures requiring HF — silicate mineral dissolution, for example — PTFE vessels are the correct choice. For all other common laboratory acids including hydrochloric, sulphuric, nitric, perchloric, and aqua regia, quartz glass offers excellent chemical resistance even at elevated temperatures and high concentrations.
FGQuartz manufactures quartz crucibles in low-form and tall-form styles with and without lids; combustion and evaporation boats; evaporation dishes and watch glasses; reaction tubes and combustion tubes; beakers, Erlenmeyer flasks, and round-bottom flasks; distillation heads, condensers, and sub-boiling acid stills; ICP plasma torch assemblies compatible with major instrument platforms; tube furnace liners in clear and opaque grades; quartz ampoules for crystal growth and sealed-tube synthesis; and fully custom laboratory vessels fabricated to customer drawings or specifications. Prototype quantities from a single piece are accepted on custom items.
Quartz glass withstands continuous service temperatures up to 1200 °C and brief excursions to 1300 °C, far beyond the 500 °C working limit of borosilicate glass. Its near-zero thermal expansion also means it resists thermal shock — a quartz crucible can be transferred directly from a muffle furnace to a cool bench surface without cracking, which borosilicate cannot tolerate. For any laboratory procedure involving temperatures above 500 °C, or requiring rapid heating and quenching cycles, quartz glass is the only practical glass-based choice. Below 500 °C, borosilicate is often adequate and less expensive; the crossover point where upgrading to quartz becomes necessary depends on the specific procedure and temperature profile.