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Amethyst Formations # From PRICE Kg
Price by Kilogram
Formations different in weight, tonality, quality
Material: Amethyst rock crystal
Price Kg from u$s 29.- to u$s 80.-

Specimen Collection # From PRICE
Specimen Collection
Color: Different tonalities in unique pieces
Material: Amethyst rock crystal
Price Kg from u$s ??
PHOTOGRAPHY AS AN EXAMPLE

Agate plates # From PRICE Kg
Agates, Jasper, Rock crystal, Amethyst, and combinations
Price by Kilogram
Color: Different
Price : From u$s 15.-  to  u$s 60.-

Amethyst spheres # From PRICE Kg
Price by Kilogram
Illustrative photo
Different prices according to color, quality and diameter.
Color: Violet, Crystal clear
Material: Amethyst rock crystal
Price Kg from u$s 35.- to u$s 85.-

Amethyst Stalactites # From PRICE unity
Price in Dollars, per unit.
Ilustrative image, ask by variety and stock
Price from u$s 6.- to u$s 20.-

Amethyst Clusters # From PRICE Kg
Uniform pieces, shapes and intensity of different colors
Price for Kg
Box Approx Weight : 1,5 Kg
Color: Violet
Material: Amethyst rock crystal
Price Kg from u$s 44.-

Agate Natural # From PRICE Kg
Price by Kilogram from u$s 0,90.-
Check the prices for the following categories :
1/2 a 1 Kg
1 a 3 Kg
3 a 10 Kg
10 a 20 Kg
20 at more

Amethyst pieces with metal support # From Price Kg. U$S 35.-

Product Introduction

In bioreactor systems, achieving optimal mass transfer of gases such as oxygen or carbon dioxide can be challenging. This is particularly true for oxygen, which is poorly soluble in water and even less so in cell culture and fermentation broths. While agitation is commonly used to mix nutrients and ensure homogeneity of the cell culture or fermentation, there are limits to agitation speed due to high power consumption and potential damage to organisms resulting from excessive tip speed.

Agitation alone is insufficient for achieving adequate mass transfer. However, by incorporating a porous metal sparger, mass transfer rates can be significantly increased in this type of equipment. Optimal mass transfer rates can be accomplished by introducing gases into stirred or unstirred reactor vessels via millions of small bubbles, which expands the gas-to-liquid contact surfaces.


Parameter

Pore size: 0.2-100 microns

Dia: 5-300mm

Length: 10-1000mm

Porosity: 30-50%

Operating temperature: up to 600C

Maximum pressure: up to 10 bar

SLICE PEBBLE MOSAIC IS SUITABLE FOR FLOORING , WALLING , INDOOR
MADE FROM PEBBLE SLICE , TUMBLING AND GLUE IT ON WHITE FIBER GLAS MESH

A large, sturdy crust with a tip that is almost as long as the phylum. The wide-open aperture has six long, sunken bones, open all the length of its entire continent, which is mainly curve upwards. The siphonal near a mirror shaped the top of the spine; The stromboid notch is deep. Blunt the goiter, the body is perfect, the nearest nipple is concave. A apical callus covers the apertural side of the shell. Creamy white, speckled and striped with brown.

We always offer the operculum with the high quality and good price . Ask my whatsapp for more information : +