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Knowledge points of tablet hardness

2023-06-06 16:46:31

Tablets refer to circular or irregularly shaped solid preparations made from raw materials or suitable excipients. The pharmacopoeia fully clarifies the regulations that tablets should comply with during production and storage, and establishes inspection methods for weight differences, disintegratio...
Do coatings still need to be tested for flash point?

2023-05-31 17:26:02

Coatings generally have four basic components: film-forming substances (resins), pigments (including physical pigments), solvents, and additives. Among them, film-forming substances are the main components of the coating, including oils, processed oil products, cellulose derivatives, natural resins, ...
Method and significance for determining the freezing point of ethylene glycol

2023-05-29 14:41:24

Ethylene glycol is the main component of antifreeze, accounting for about 45% of the original antifreeze solution. The original antifreeze solution can be mixed with water in a certain proportion according to the temperature in different regions to control the freezing point within an appropriate ...
What are the methods for detecting sulfur content in petroleum?

2023-05-19 16:50:45

The commonly used methods for analyzing total sulfur include:; Microcoulomb method, lamp burning method, oxygen bomb method, ability dispersive X-ray fluorescence method, ultraviolet fluorescence method, etc. Lamp burning method: Suitable for measuring the sulfur content of light petroleum products ...
How much do you know about the mechanical stability of lubricating grease?

2023-05-04 16:35:43

The mechanical stability of lubricating grease, also known as shear stability, is an important characteristic beyond the colloidal stability and oxidation stability of lubricating grease. It represents the ability of lubricating grease to resist changes in viscosity under mechanical working ...
What does the low temperature dynamic viscosity of engine gasoline oil mean?

2023-03-03 10:07:25

Engine oil is also called engine oil. Engine oil is divided into gasoline engine oil and diesel engine oil, which are applicable to gasoline engine and diesel engine respectively. Engine oil also cools and cleans the engine. Engine oil consists of base oil and additives. The low temperature dynamic ...
SH128 Automatic freezing point tester

2022-03-25 14:33:42

SH128 Automatic freezing point tester Snowmelt, as its name suggests, is a chemical that reduces the temperature at which snow and ice melt. The common snow melt agent is easy to obtain and cheap, and its main ingredients are potassium acetate and chloride salt, which are classified by these two. ...
Automatic determination of methanol flash point solution

2022-03-24 16:39:51

Automatic determination of methanol flash point solution Methanol is a colorless, transparent, flammable and volatile toxic liquid with a slight odor of alcohol. Molecular weight 32.04, relative density 0.792(20/4℃), melting point -97.8℃, boiling point 64.5℃, flash point 12.22℃, spontaneous ...
SH112H automatic countercurrent kinematic viscosity tester

2022-03-23 13:18:08

SH112H Automatic countercurrent kinematic viscosity tester Most of the time we see a lot of fuel oil behind a 180CST or 380CST, the value behind this is we often say fuel oil (heavy oil) viscosity, CST is the viscosity unit. Viscosity is a characteristic of all liquid oils. It reflects the ...
What is the low temperature fluidity of diesel oil related to?

2022-03-22 08:38:13

What is the low temperature fluidity of diesel oil related to? The flow performance of diesel oil at low temperature is not only related to the normal fuel supply system, but also has a close relationship with the storage and transportation of diesel oil at low temperature. The low temperature ...

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