SPI-Glas™ 11 Brand Glassy (Vitreous) Carbon Beakers

Beakers have a built in pouring spout for ease of use

Introduction:
Use glassy carbon beakers where ever the highest purity is required. Absolutely nothing will leach out of a beaker made from SPI-Glas™ 11. Glassy carbon is a unique material and exhibits properties entirely different from other forms of carbon with which one already has some high amount of familiarity. The glassy carbon dishes offered by SPI Supplies in SPI-Glas 11 Grade are plug-in compatible in many applications where presently only Pt evaporating dishes are being used. Their low economical cost, relative to platinum makes them especially in demand in days of shrinking research budgets. The very high density of the product literally prevents many molten materials from spreading on the glassy carbon surface. And the high density prevents any of the molten species from leaching into the glassy carbon surface.

Chemical resistance:
Theoretically, glassy carbon should behave like any other form of carbon, such as graphite, but in fact it is far less reactive because of the higher density relative to the normally more porous graphite. Its resistance is more akin to HOPG and high density pyrolytic graphite.

Thermal properties:
The material can be taken to 1100°C without any significant devitrification. However above that temperature, some devitrification will occur, and there will be a nucleation and growth of a graphite phase.

Note: that the SPI Glas glassy carbon products can be heated in air up to 500°C without undergoing any reaction but above this temperature, any heating should be done strictly either under vacuum or in an environment of argon.

Available crucibles this style:

	Volume	D	H	Wall Thickness	SPI #	Each	In Stock
	ml	mm	mm	mm
Type BAG 38	38	38	50	3	4223GCB-AB	$266.60	Yes
BAG 50	50	39	59	3	4224GCB-AB	349.93	Yes
BAG 115	115	54	70	3	4225GCB-AB	391.28	No
BAG 275	275	74	82	3	4226GCB-AB	550.80	Yes
BAG 430	430	90	86	3	4227GCB-AB	643.36	Yes

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