| Customization: | Available |
|---|---|
| CAS No.: | 7320-34-5 |
| Formula: | K4p2o7 |
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Potassium pyrophosphate, also known as tetra-sodium pyrophosphate, is made from the melting of di-potassium phosphate which causing it loss of one water molecule. At room temperature, it is as a white crystalline powder or granules and has a strong moisture absorption capability in air and is easily soluble in water but insoluble in ethanol. Its aqueous solution is alkaline and has effect on inhibition of food spoilage and fermentation. The pH of 1% aqueous solution is about 10.5. At about 25 ºC, the solubility of potassium pyrophosphate in 100g of water is 187g. It is hydrolyzed into potassium phosphate in acid or alkaline solution and can form a viscous-like slurry body when being mixed with water. It is mostly used in combination with other condensed phosphates, such as for the preparation of adhesive of ham and sausage in the ratio of 10% potassium pyrophosphate, 10% sodium pyrophosphate, 30% potassium polyphosphate, 30% sodium polyphosphate and 20% sodium metaphosphate. It is commonly used for preventing the generation of struvite in canned fish, preventing the discoloration of canned fruit, increasing the swelling degree of ice cream, the extracting amount of the raw materials of coffee as well as the yield of ham and sausage, enhancing the water holding capacity of fish, improving the taste and yield of noodles, and preventing the aging of cheese. In order to strengthen and smooth the plating layer, the formulation of industrial production of the plating solution is often very complicated. It is previously often applied to cyanide as the complexing agent cyanide for preparing plating solution. However, because of the high toxicity of CN-, it does severe harm to the health of electroplating worker. Moreover, the discharge of CN-of sewage, waste gas also seriously contaminates the environment. So it is currently mainly applied of non-cyanide plating with the complexing agent replacing cyanide being potassium pyrophosphate.
Mainly used for cyanide-free electroplating, surface treatment, high-end detergents, paints and coatings, cleaners, dispersants, buffers
| Index name | GB 25562-2010 | FCC-V |
| Assay ≥% | 95.0 | 95.0 |
| Water insoluble ≤% | 0.10 | 0.10 |
| Heavy metals (as pb) ≤% | 0.001 | 0.001 |
| As ≤% | 0.0003 | 0.0003 |
| Fluoride (F)≤% | 0.001 | 0.001 |
| Pb ≤% | 0.0002 | 0.0002 |
| pH(10g/LSolution) | 10.5±0.5 |
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Q1. How about your company?
A: Established in 2010 and honored every day since. Qingdao Fangjinlong's mission is providing unparalleled quality and service in every aspect of our operations, As a chemical expert and supplier, the company has invested 2 chemical plants and it relies on the research and development of technology of the Environmental Science and Engineering of Ocean university of China . Fangjinlong undertakes and provides support for market-driven research,strives for commercialization of the technologies to benefit the industry and the society at large, as well as to promote the economic growth and sustainability of the earth. Begin your partnership with Fangjinlong , please contact us.
Q2. How can we guarantee quality?
A: Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q3:Can you give me a discount price?
A: Surely,It depend on your quantity.
Q4:How can i get a sample?
A: Free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q5: How to confirm the Product Quality before placing orders?
A: You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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