Potassium Sorbate Raw Materials Potassium Sorbate Powder

CAS:24634-61-5

MF:C6H7KO2

MW:150.22

EINECS:246-376-1

Specification: 99% min Potassium Sorbate Powder

Sample:Potassium Sorbate Powder

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance: White to Almost white

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Potassium Sorbate Powder Usage and Synthesis.

Potassium sorbate is the potassium salt of sorbic acid, a preservative allowed to be used in China. It is white to light yellow scaly crystals, crystal particles or crystal powder, odourless or slightly smelly, easy to absorb moisture, oxidative decomposition and discolouration when exposed to air for a long time. Potassium sorbate is soluble in water, soluble in propylene glycol and ethanol. Because sorbic acid is difficult to dissolve in water, the use of inconvenience, so commonly used potassium sorbate.

Potassium sorbate is an internationally recognised low-toxicity, high-efficiency acid-based food preservative with the same preservative effect as sorbic acid. For the range of use and dosage (in terms of sorbic acid), see Sorbic acid.

Uses and functions of Potassium Sorbate.

Potassium sorbate is mainly used as food preservative, also used in cosmetics preservation and feed mould prevention. It has a strong inhibition of spoilage bacteria and moulds, and is easily soluble in water and widely used.

Its inhibition of bacterial growth is stronger than the bactericidal effect, the lower the PH value, the stronger the antibacterial effect.

Sorbic acid (potassium) can effectively inhibit the activity of moulds, yeasts and aerobic bacteria, and also prevent the growth and reproduction of harmful microorganisms such as Clostridium botulinum, Staphylococcus, Salmonella, etc. However, it is almost ineffective for the beneficial microorganisms such as anaerobic bacillus and Lactobacillus acidophilus, etc. Its inhibitory development is stronger than the bactericidal effect, which achieves the effect to prolong the preservation time of the food effectively, and maintains the original flavour of the food.

Its preservative effect is 5-10 times higher than that of sodium benzoate, a similar product. As a cosmetic preservative.

Characteristic of Potassium Sorbate.

White to light yellow scaly crystals, crystalline powder or granular. Odourless or slightly odourless. Long-term storage in the air is easy to absorb moisture and oxidative decomposition and colouring. Relative density (d2025) 1.363.

Melting point 270°C (decomposition). Soluble in water (67.6g/100ml, 20℃) 5% salt water (47.5g/100ml, room temperature), 25% sugar water (5lg/100ml, room temperature). Dissolved in propylene glycol (5.8g/100m1), ethanol (0.3g/100m1). 1% aqueous solution has a Ph value of 7~8.

It has strong inhibition of spoilage bacteria and moulds, and has become the most important preservative in the world because the toxicity is much lower than other preservatives.

It can give full play to its antiseptic effect under acidic conditions, and its effect is very low when it is neutral.

Product Method of Bulk Potassium Sorbate Powder.

Add sorbic acid in the reaction kettle, then add 66% of the mass of sorbic acid in water, at 45 ℃ dropwise addition of 49% of potassium hydroxide solution, until the reaction solution Ph = 8 until the reaction takes about 45 min. add a certain amount of activated carbon, vacuum filtration, at 40 ~ 45 ℃ will be evaporated under reduced pressure filtrate 3 ~ 4h to meet the requirements of the temperature to 70 ℃ after the release of the material. After centrifugal dehydration to get crystallisation, mother liquor recycling; Finally, drying at 105 ℃ to get the product.