Name: Sodium bicarbonate CAS No.: 144-55-8 Appearance: White powder or opaque monoclinic system fine crystals Molecular formula: CHNaO3 Molecular Weight: 84.01 Melting point:>300 °C(lit.) PACKAGE:25KG/BAG
Name: Dichroromethylvinylsilane CAS number: 124-70-9 Molecular formula: C3H6Cl2Si Molecular weight: 141.07 EINECS number: 204-710-3 Mol file: 124-70-9.mol
Name: Vinyltrimethylsilane CAS number: 754-05-2 Molecular formula: C5H12Si Molecular weight: 100.23 EINECS number: 212-042-9 Mol file: 754-05-2.mol
Name: Ethoxydimethylvinylsilane CAS number: 5356-83-2 Molecular formula: C6H14OSi Molecular weight: 130.26 EINECS number: 226-341-7 Mol file: 5356-83-2.mol
Name: CHLORODIMETHYLPINYLSILANE CAS number: 1719-58-0 Molecular formula: C4H9ClSi Molecular weight: 120.65 EINECS number: 217-007-1 Mol file: 1719-58-0.mol
Name: 1,1,3,3-TETRAMETHYL-1,3-DIVINYLDISILAZANE CAS number: 7691-02-3 Molecular formula: C8H19NSi2 Molecular weight: 185.41 EINECS number: 231-701-1 Mol file: 7691-02-3.mol
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Description:
Sodium alginate is a by-product after the extraction of iodine and mannitol from kelp or Sargasso The uronic acid (α-L-guluronic, G) is connected by the (1→4) bond. The aqueous solution of sodium alginate has a high viscosity and has been used as a food thickener, stabilizer, emulsifier, etc. Sodium alginate is a non-toxic food and has been included in the US Pharmacopoeia as early as 1938. Sodium alginate contains a large amount of -COO-, which can show polyanionic behavior in aqueous solution and has certain adhesiveness, and can be used as a drug carrier for the treatment of mucosal tissue. Under acidic conditions, -COO- is converted into -COOH, the degree of ionization decreases, the hydrophilicity of sodium alginate decreases, the molecular chain shrinks, and when the pH value increases, the -COOH group continuously dissociates, and the hydrophilicity of sodium alginate decreases. The sex increases and the molecular chain stretches. Therefore, sodium alginate has obvious pH sensitivity. Sodium alginate can quickly form a gel under extremely mild conditions. When there are cations such as Ca2+ and Sr2+, Na+ on the G unit undergoes an ion exchange reaction with divalent cations, and the G units are stacked to form a cross-linked network structure. Hydrogels. The mild conditions for sodium alginate gel formation can avoid the inactivation of active substances such as sensitive drugs, proteins, cells and enzymes. Due to these excellent properties, sodium alginate has been widely used in the food industry and medicine.
Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is used most prevalently in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments.
Sorbic acid, or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative,Sorbic acid is a colourless solid that is slightly soluble in water and sublimes readily.
Methyl benzoate is an organic compound. It is an ester with the chemical formula C6H5CO2CH3. It is a colorless liquid that is poorly soluble in water, but miscible with organic solvents.
Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is used most prevalently in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments.
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