Calcium sorbate is the calcium salt of sorbic acid. Calcium sorbate is a polyunsaturated fatty acid salt. It is a frequently used food preservative.

The Reichardt dye (Betaine 30) is an organic dye belonging to the class of azomerocyanine betaines. This dye is notable for its solvatochromic properties, meaning it changes color depending on the solvent in which it is dissolved.

An excellent collector for non-ferrous metal sulfide flotation, exhibiting outstanding selectivity and specific separation performance for copper, lead, zinc, molybdenum sulfide ores, etc.

Magnesium oxide (MgO) is a chemical compound composed of one magnesium atom (Mg) and one oxygen atom (O). It is widely used in various industrial and commercial applications due to its unique chemical and physical properties.

Ascorbic acid, also known as vitamin C, is an organic compound essential for many functions in the human body. It has multiple uses and benefits, both in health and industry.

The term "red dye" is fairly generic, as there are several red dyes used in various industrial, food and cosmetic applications. These dyes can be of natural or synthetic origin. 

"HUILE DE BASE 150 NS" is a reference to a base oil with ISO VG 150 viscosity (150 NS). Base oils, also known as mineral base oils, are basic quality lubricating oils used in the formulation of various industrial lubricants, including gear oils, hydraulic oils and similar products.

BHT (Butylated Hydroxytoluene) is a widely used antioxidant known for its ability to protect products from oxidation and rancidity.

It appears as a crystalline, water-soluble powder, typically white to slightly yellowish in color.

Fumaric acid, or trans-butenedioic acid, is an unsaturated dicarboxylic acid with the chemical formula HOOC–CH=CH–COOH. It appears as a crystalline white powder that is odorless, combustible but weakly flammable, and slightly soluble in water.

Tartrazine, also known by the code E102, is a synthetic coloring widely used in the food industry. 

Amylase is a naturally occurring enzyme found in various organisms, including human saliva, the pancreas, and it can also be obtained from microorganisms such as bacteria and yeast.