Complaint
White to light yellow scaly crystals, crystalline powder, or granular. Odorless or slightly odorous. Long-term storage in the air, easy to absorb moisture and oxidative decomposition and coloring. Relative density (d2025): 1.363. Melting point 270 °c (decomposition). Soluble in water (67.6g/100ml, 20 °C), 5% salt water (47.5g/100ml, room temperature), 25% sugar water (5Chemicalbooklg/100ml, room temperature). Soluble in propylene glycol (5.8g/100m1), ethanol (0.3g/100m1). The pH value of 1% aqueous solution is 7~8. It has a strong effect of inhibiting spoilage bacteria and mold, and because the toxicity is far lower than other preservatives, it has become the world's main preservative. Under acidic conditions, it can give full play to the antiseptic effect, and the effect is very low when neutral.
| Items | Standard |
| Identification | Conform Standard |
| Appearance | White Granular |
| Assay | 98.0-101.0 % |
| Acidity | ≤ 1% |
| Alkalinity | ≤ 1% |
| Heavy Metals (as Pb) | ≤ 10 PPM |
| Arsenic (as As) | ≤ 3 PPM |
| Loss on Drying | ≤ 1% |
| Lead | ≤ 2 PPM |
25kg Carton
Take 0.25g (accurate to 0.1mg) of the sample after drying at 105 °C for 3h. Put 250ml of glass plug flask, add 36ml of glacial acetic acid and 4m1 of acetic anhydride, and warm to make a solution. Cool to room temperature, add 2 drops of crystal violet test solution (TS-74), and titrate to the blue-green endpoint with 0.1mol/L pechloric acid glacial acetic acid solution, and maintain for 30s without disappearing. At the same time, blank tests are carried out and necessary corrections are made. Perchloric acid per ml of 0.1mol/L is equivalent to 15.02mg of potassium sorbate (C6H7KO2).
It is used as a preservative and fungal agent in the food industry.
Hebei Rongxintong Industrial Co., Ltd. is the specialized chemical, processing and sales enterprise.
our products enjoy good reputation both at home and abroad.Our trade partners are around the world, mainly in America,Europe,Australia,South East Asia ,Middle East and South Africa. In order to serve customers well, the company has established special technical department and after-sale service department. We will make careful reply if you get any question.
The company with all the employees will constantly purse excellent quality, perfect brand and our image, and adheres to our spirit of honesty, diligence, seeking truth and progress and insists on business philosophy of quality as life and service as soul. We will satisfy market demands by top products and better service, and will welcome market challenge forever.
1. Are you a trading company or a factory?
Yes, we are a factory with nearly 20 years of experience.
2. How do you control the quality?
We have professional quality inspectors and keep samples of each order for two years, so we also support third party testing, such as SGS, BV, etc.
3. What are your payment terms?
T/T or L/C AT SIGHT for first time cooperation.
4. What is the weight of your unit package?
25kg or 50kg with PE bag or as your requirement.
5. Can I get samples before I order?
Yes, of course you can, we will give you free samples within 3 days.
6. Can I package it according to my logo?
Of course you can, you just need to provide the package design.
7. What is the delivery time?
The delivery time for sample orders is usually 4-7 working days after receiving full payment. For bulk orders, it is about 10-20 working days after receipt of deposit.
8. What is the port of loading?
Usually Shanghai, Qingdao or Tianjin (major ports in China).
