(Didactic Division)

SCIENCE LAB SUPPLIES

Physics
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Laboratory Glassware
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Educational Items
High School Experiments
School Microscopes
Electronic Items
Optical Instruments
Educational Charts
Auto Mechanical Models
Solar Energy System Models
Porcelain (also known as China or Fine China) is a ceramic material made by heating materials, generally including clay in the form of kaolin, in a kiln to temperatures between 1,200 °C (2,192 °F) and 1,400 °C (2,552 °F). The toughness, strength, and translucence of porcelain arise mainly from the formation of glass and the mineral mullite within the fired body at these high temperatures. Porcelain derives its present name from Old Italian porcellana (cowrie shell) because of its resemblance to the translucent surface of the shell. Porcelain can informally be referred to as "china" or "fine china" in some English-speaking countries, as China was the birthplace of porcelain making. Properties associated with porcelain include low permeability and elasticity; considerable strength, hardness, toughness, whiteness, translucency and resonance; and a high resistance to chemical attack and thermal shock. For the purposes of trade, the Combined Nomenclature of the European Communities defines porcelain as being "completely vitrified, hard, impermeable (even before glazing), white or artificially coloured, translucent (except when of considerable thickness), and resonant." However, the term porcelain lacks a universal definition and has "been applied in a very unsystematic fashion to substances of diverse kinds which have only certain surface-qualities in common" (Burton 1906).

Chinaware & Porcelainware

Mortars & Pestles, Porcelain

Mortars & Pestles, Porcelain

Porcelain good quality, unglazed inside, glazed outside. Other sizes are also available on specific request. Size (diameter) available are
75mm.
125mm.
175mm.
250mm.
100mm.
150mm.
200mm.
Crucibles

Crucibles

Crucible High-form; glazed inside and out except for outside bottom surface. Crucible lids are glazed all over except for rim.
Crucibles

Crucibles

Porcelain tall, glazed inside and outside except base, with lid. Size
10 ml.
20 ml.
25 ml.
35 ml.
50 ml.
100 ml.
Crucibles Silica

Crucibles Silica

Bitumen filter-crucible has a perforated bottom. Used for applications similar to total suspended solids determination. Glazed inside and out except for outside bottom and rim. Crucible accepts standard filter paper sizes. Covers are glazed inside and out except for rim Autoclavable.
Capacity
Bottom OD
Depth
Quantity
Filter Size
28 ml.
44 mm
24 mm
1/pk
30-33 mm
Funnel Filter

Funnel Filter

Polythene, uneffected by acids, alkalies etc.
Sizes
5 cms.
6.25 cms.
7.5 cms.
10 cms.
15 cms.
20 cms.
Basin Evaporating

Basin Evaporating

Porcelain, flat form, with spout, glazed inside and outside except for rim.
Outer Dia.
60 mm.
75 mm.
100 mm.
125 mm.
150 mm.
175 mm.
Capacity
25 ml.
50 ml.
100 ml.
260 ml.
380 ml.
600 ml.
Basin Evaporating

Basin Evaporating

Porcelain, with spout, deep from, flat bottom glazed except outside base.
Outer Dia.
25 mm.
50 mm.
60 mm.
75 mm.
100 mm.
110 mm.
125 mm.
150 mm.
175 mm.
Capacity
8 ml.
20 ml.
40 ml.
100 ml.
175 ml.
275 ml.
450 ml.
850 ml.
1300 ml.
Crucible

Crucible

Porcelain tall, glazed inside and outside except base, with lid.
Sizes
10 ml.
20 ml.
25 ml.
35 ml.
50 ml.
100 ml.
Crucible Silica

Crucible Silica

Tall, glazed inside and outside.
Sizes
15 ml.
30 ml.
50 ml.
Gas Washing Bottles Dreschel's

Gas Washing Bottles Dreschel's

With inlet and outlet tubes in stopper, fits to bottle, 24/29 ground glass joint.
Inlet and outlet tube external dia. 8 mm.
Height 250 mm.
Capacity 250 ml.