uxcell 7mm Solid Round Clear Glass Ball Boiling Stones - 100pcs Soda Lime Glass Beads for Chemistry Lab, Distillation, Home Brewing & Science Experiments

$4.11

$7.49

Safe 45%

uxcell 7mm Solid Round Clear Glass Ball Boiling Stones - 100pcs Soda Lime Glass Beads for Chemistry Lab, Distillation, Home Brewing & Science Experiments

uxcell 7mm Solid Round Clear Glass Ball Boiling Stones - 100pcs Soda Lime Glass Beads for Chemistry Lab, Distillation, Home Brewing & Science Experiments

$4.11

$7.49

45% Off

Delivery & Return: Free shipping on all orders over $50

Estimated Delivery: 10-15 days international

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SKU: 91431372

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Description

Specifications:Ball Diameter: 7mmPrecision Grade: G1000Material: Soda Lime GlassPackage Contents:100 x Glass BallsDescriptions:There are two kinds of commonly used materials for making glass balls: Soda Lime Glass & Borosilicate Glass.Soda-lime glass is known as chemically inert. It is resistant to alkaline solutions. The balls made of soda-lime glass have good electric and corrosion-resistant properties but can not bear the thermal shock. The melting point is about 700C.Borosilicate glass is highly chemical and heat resistant. Borosilicate glass balls are dimension stable with a melting point of about 800C.Glass balls are especially useful for check valves, visual flow equipment, low-speed bearings, and many labs and experimental applications.Notice: Please confirm the Ball Diameter you are ordering.

Shipping & Returns

For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

Features

Size - 7mm Diameter. The package includes 100 pieces of balls

Material - Made of soda-lime glass, which has good resistance to solvent and high-temp.

Features - Solid round with polished smooth surface. The diameter tolerance is about +/-0.02mm. Softening Point 726C / 1340F

Applications - Glass balls are especially useful for model paint mixing, grinding and sanding, or use as lab boiling stones.

Notice - Confirm the Ball Diameter before ordering.

Reviews

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Verified Buyer

Glass boiling stones act as localized nucleation sites, enabling consistent bubble formation to regulate vaporization and prevent erratic boiling or bumping. Their inert, smooth surface promotes controlled phase transitions without introducing impurities. They ensure that equilibrium is reached more predictably.

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