BELGUARD® KS NB

BELGUARD® KS NB is a combination of key ingredients Sodium Benzoate, one of the most common food preservative largely used in cosmetics & pharmaceuticals coupled with Potassium Sorbate, extensively used as fungi static agent in foods, beverages, pharmaceuticals & cosmetics.

The combination of both has proved synergistic. Due to the high activity against yeasts & moulds, it suits the needs of cosmetics highly susceptible to fungal contamination.

COMPOSITION

Product Name Sodium Benzoate Potassium Sorbate
Molecular Weight 144.1 g/mol 150.22 g/mol
CAS No. 532-32-1 24634-61-5
EINECS Name Sodium Benzoate potassium-(E,E)-hexa-2,4-dienoate
EINECS No. 208-534-8 246-376-1

EU INCI declaration
Sodium Benzoate
Potassium Sorbate
Aqua

US INCI declaration
Sodium Benzoate(and)
Water(and)
Potassium Sorbate

Recommended Dosage

Product forms Recommended concentration in %
Aqueous formulations 0.3 – 1.0
Surfactant–based formulations 0.2 – 0.8
Emulsions 0.5 – 1.0
Wet wipes 0.5 - 1.0
Powders 0.2 - 0.6

Technical data

Description Parameter
Appearance Clear yellowish liquid
Odour Mild Characteristic
pH (as is) 8.5 – 9.5
Water 52.0% - 58.0%
Density (at 20°C) Approx. 1.17 g/ml
Refractive Index (20°C) 1.435 – 1.440

General Remarks

  • BELGUARD® KS NB is a clear yellow liquid, practically odourless and well tolerated at temperatures up to 80°C for a short duration (max. 4 hours). The recommended pH for the final formulations is max. 5.5, preferably 5 or lower. The efficacy of BELGUARD KS NB depends on the pH value. The antimicrobial activity increases as pH value reduces, hence lower pH value leads to greater preservative efficiency.
  • BELGUARD® KS NB is alkaline in nature & can increase the pH value of final formulation, hence pH of finished product must be checked and if necessary adjusted to max. 5.5 or lower.

Regulatory Status & Use concentrations

Application EU & ASEAN Cosmetic Directive Cosmetic Ingredient Review (USA) Japan (Standard for cosmetics)
Leave on Max. 1.96% Max. 16.66% Max. 3.3%
Rinse off Max. 5.35% Max. 16.66% Max. 3.3%

Storage

Store in the original container at room temperature. Keep away from light and heat.

Shelf Life

1 year from the date of manufacturing in its original packed condition.

Packaging

250 kg & 35 kg HDPE Drum or HDPE Carboy.