Bee Chems

Potassium Silicate in Agriculture and Industrial Coatings Soluble silicates are among the older industrial chemicals still in routine use, and the potassium form occupies a narrower but more interesting niche than its sodium counterpart. It costs more. It is specified anyway, in applications where the potassium ion does something sodium cannot, or, just as often, where sodium actively causes a problem. What Is Potassium Silicate? Potassium silicate is a soluble silicate supplied as a clear to slightly hazy alkaline liquid, or as a solid for dissolution. It consists of silica and potassium oxide in a defined proportion, and that proportion governs almost everything about how the material behaves. Typical properties Composition: SiO2 and K2O in a defined weight ratio Form: alkaline aqueous solution; solid grades available Appearance: clear to slightly hazy liquid Character: alkaline Film behaviour: cures to a hard, insoluble silicate on drying and carbonation Silica to alkali ratio:...

Choosing a Desiccant Supplier: What B2B Buyers Should Check Desiccant is a low-value line item that protects high-value goods. That asymmetry explains why it is so often bought badly: the purchase is too small to attract scrutiny, and the failure appears months later as cargo damage that nobody traces back to the sachet. The quotes usually look interchangeable. They are not, and the differences are visible if you know which questions to ask. Start With the Capacity Figure, and Interrogate It Every desiccant datasheet quotes an adsorption capacity, typically as a percentage of the product's own weight. Taken alone, the number means almost nothing. Capacity is a function of conditions Adsorption capacity varies enormously with relative humidity and temperature. A silica gel quoted at a high percentage may have been measured at 80% RH and 25 °C, conditions your packaging may never experience. At 30% RH the same material holds a fraction of that figure. The question to ask is no...

Almost all the cooling in the world runs on one machine. An electric compressor squeezes a refrigerant, the refrigerant expands, and the expansion absorbs heat. It works, it is thoroughly understood, and it consumes a great deal of electricity at exactly the hours when electricity costs most. There is an alternative that most engineers have heard of and relatively few have examined closely. It has no compressor, draws almost no power, and runs on heat that many plants are already throwing away. What Is an Absorption Chiller? An absorption chiller produces chilled water using a chemical process in place of mechanical compression. Water evaporates under deep vacuum, drawing heat from the circuit being cooled, the same physics that makes perspiration cooling. The resulting vapour is then absorbed into a concentrated salt solution, typically lithium bromide or lithium chloride, rather than being compressed by a machine. The solution dilutes as it takes up water. To regenerate it, heat ...