5A molecularsieve is calcium A-type silicon aluminate. A molecular sieve 5A can absorb molecules whose critical size is less than 5A. Any molecular molecules which can be adsorbed using 3A and 4A molecularsieves can be adsorbed via 5A type. About M…
The roble had hit a record low after the West imposed sweeping sanctions on Russia for its aggression in Ukraine. Russia's president recently ordered exports of Russian gas to "unfriendly" countries to be settled in robles. The speaker of Russia's up…
First of all, pay attention to the storage environment of polycarboxylate superplasticizer, try to store polycarboxylate superplasticizer in a cool, ventilated, no direct sunlight place.…
For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase o…