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Porcelain Evaporating Dishes
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Chemical Ceramics

Porcelain Evaporating Dishes

Round / Flat Bottom · 60mm~150mm · Everyday Vessel for Evaporation

Porcelain evaporating dishes are the classic vessel for evaporation. Made of quality hard porcelain with a wide shallow profile, they offer a large heating surface and fast concentration. Round-bottom and flat-bottom forms in 60mm to 150mm diameters serve solution concentration, crystallization and dry-down pretreatment over water baths or hot plates.

60 – 150 mmDiameter
25 – 45 mmDepth
35 – 320 mLApprox. Volume
Round / FlatForm

Specifications are subject to confirmation with your enquiry.

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Hard Porcelain 60mm~150mm Round / Flat Heat Tolerant Smooth Glaze

📐 Highlights:
Hard porcelain · Round/Flat bottom · 60~150mm · fast concentration · easy crystal recovery

  • Material — Hard porcelain, glazed inside and out
  • Diameter — 60 / 80 / 100 / 120 / 150 mm
  • Form — Round-bottom / flat-bottom
  • Heat — Suitable for direct heating and ignition duty
  • Corrosion — Resists common acids and alkalis (not HF)
  • Use — Evaporation, crystallization, dry-down
We will follow up on your inquiry as soon as possible. Custom sizes supported Samples available
Specifications

Specifications

Typical factory dimensions are listed below. Dimensions are indicative for selection only.

Request custom specs

Round / Flat Bottom Dishes

Diameter (mm)Depth (mm)Approx. Volume (mL)Form
602535Round / Flat
803070Round / Flat
10035130Round / Flat
12040200Round / Flat
15045320Round / Flat
Volumes are approximate and vary slightly by form; for selection guidance only.
📌 Customization:
• Custom diameters on request
• Special sizes for bulk orders
• Matching watch glasses available

Product Description

1. Overview

With a wide mouth, shallow body and thin wall, porcelain evaporating dishes expose a large surface for fast evaporation. The dense hard-porcelain body and smooth glaze tolerate direct heating as well as gentle water-bath work.

Round-bottom dishes help liquid pooling and stirring; flat-bottom dishes heat evenly and sit steadily. Five diameters from 60mm to 150mm cover micro to moderate batch work. Crystals and residues are easy to scrape off the glazed surface.

Fill to no more than two-thirds volume. Water baths suit heat-sensitive samples; direct heating requires a wire gauze and controlled flame to prevent bumping.

🔬 Types & Features:
Wide and shallow — large surface, fast concentration.
Smooth glaze — crystals scrape off easily.
Two forms — round for pooling, flat for even heating.
Five diameters — 60~150mm for common batches.

2. Key Parameters

  • Material: hard porcelain (glazed inside and out)
  • Diameter: 60 / 80 / 100 / 120 / 150 mm
  • Form: round-bottom / flat-bottom
  • Corrosion: resists common acids and alkalis; no HF
  • Heating: water bath / hot plate / wire gauze flame
  • Accessories: watch glasses (dust cover), glass rods

3. Material & Workmanship

Formed from quality ceramic stock and fired at high temperature with glazing. Uniform wall thickness gives moderate heat conduction and crack resistance. Appearance and dimensions are inspected batch by batch.

Pair dishes with matching watch glasses for dust protection; for batch work, stock a diameter ladder.

Applications

Typical Uses

Evaporation

concentrating salt solutions and extracts

Crystallization

cooling crystallization and crystal collection

Dry-down pretreatment

food and water samples before ashing

Routine work

solvent removal over water baths

Industries

  • Teaching laboratories evaporation and crystallization demos
  • Food testing dry-down before ash determination
  • Environmental analysis water sample pretreatment
  • Chemical labs mother-liquor recovery

Selection Guide

Selection by Form

RequirementFormWhy
Routine concentration with stirringRoundEasy pooling and stirring
Water-bath concentrationFlatEven heating, stable seating
Crystal recoveryFlatFlat surface, easy scraping

Selection by Diameter

Batch SizeDiameterNote
Micro (<20mL)60~80 mmFast heat-up
Routine (20~100mL)100~120 mmLaboratory workhorse
Larger batches (>100mL)150 mmHigher throughput

💡 Tips: 100mm round dishes are the most used size.
Flat-bottom with water bath suits delicate samples.
Flat-bottom simplifies crystal recovery.

Operation & Maintenance

Operation Guide

Standard operating guide for porcelain evaporating dishes.

03

Before Use

  • Check for cracks and glaze damage
  • Clean the inner wall and air-dry
  • Prepare glass rod, watch glass and heater
  • Confirm samples contain no HF
04

Procedure

  1. Fill to no more than two-thirds volume
  2. Heat over a water bath or wire gauze on a low flame
  3. Stir with a glass rod to prevent bumping
  4. Reduce heat as liquid approaches dryness
  5. Finish drying with residual heat or transfer to a desiccator
  6. Collect crystals or residues after cooling
05

Cleaning & Care

  • Soak and clean promptly; crystals dissolve in warm water
  • Dilute acid soaks remove stubborn residues
  • Avoid scratching the glaze
  • Handle gently and store on stable shelving

💡 Lab veteran tips: Never overfill — two-thirds maximum to prevent overflow.
Keep stirring — bumping risk peaks near dryness.
Water bath for delicate samples — gentle, controlled.
Residual-heat finish — stop heating early and let it coast.

Care & Notes

Show care & notes

⚠️ Safety Notes

Heating

always use a wire gauze for flame heating

Spatter control

bumping loses sample — keep stirring

Forbidden media

no hydrofluoric acid

Burn protection

move hot dishes with tongs or pads

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Porcelain Evaporating DishesDiameter 60 – 150 mm Get a Quote