Audited Supplier
English name:Disodium dihydrogen pyrophosphate/Sodium Acid Pyrophosphate/SAPP food grade
Chemical formula: Na2H2P2O7,NaH3P2O7
Molecular weight: 221.95
CAS login number: 7758-16-9
EINECS login number: 231-835-0
Dangerous Goods Transport Number: 28353990
Properties: White powder, relative density 1.86, soluble in water, insoluble in ethanol, water solution and dilute inorganic acid heating hydrolysis into phosphoric acid, hygroscopicity, water absorption after the formation of six crystalline hydrates, heating to above 220 degrees Celsius decomposition to produce sodium metaphosphate.
Quality standard:
| Test | Result |
| Assay (as Na2H2P2O7) | 95% min |
| P2O5 | 63-64.5% |
| Loss on drying | 0.5% max |
| Water Insoluble | 1.0% max |
| pH Value (1% solution) | 3.5-4.5 |
| Fluoride | 10 mg/kg max |
| As | 3 mg/kg max |
| Lead | 4 mg/kg max |
| Cd | 1 mg/kg max |
| Heavy Metals (As+Pb) | 10 mg/kg max |
| Bulk Density | 800 g/l-1050 g/l |
| ROR | 15/28/40 |
- Food Industry: It is used as a food additive. As a buffering agent, with a pH value of 9.8 - 10.8 in 1% solution, it can adjust the pH in processed foods such as puddings. It is also a calcium sequestrant, which can remove naturally occurring calcium ions from proteins and cross - link with proteins, accelerating protein gelation, improving texture and reducing cooking loss in meat analog production. It is used in meat products, canned fruits and vegetables, dairy products, baked goods, and some seafood to increase water retention, improve gel strength and tenderness. In addition, it is used in marshmallows, puddings, cheese, ice cream, milk protein products, and tuna.
- Cosmetic Industry: It is used in toothpaste and mouthwash as a chelating and oral care agent to prevent the deposition of calcium and magnesium on teeth, helping to control tartar formation2.
- Other Industries: In the textile industry, it is used as a scouring agent and dyeing assistant. In the paper - making industry, it serves as a dispersant3. It is also used in the hosiery manufacturing to remove calcium alginate linking stitches and in silk degumming3. Moreover, it can be used as a water softener, metal ion chelating agent, and boiler scale remover6.
Q1: Can I get some samples?
A: Yes, sure. Usually, we can provide free samples for less than 5 kg, but the customer needs to pay for the shipping.
Q2: What is your MOQ?
A: The minimum order quantity varies for different products, with most requiring a minimum of 1 ton. However, we can accommodate smaller quantities, such as 100kg, with a 100% sample charge.
Q3: How to confirm product quality before placing an order?
A: You can obtain free samples of the products, but you need to cover the shipping fee or arrange for the samples to be sent to us by express. Additionally, you can provide us with your product specifications and requirements, and we will manufacture the products accordingly.
Q4: Is there a discount for bulk purchases? How much is the discount?
A: Yes, we offer discounts for bulk purchases. The discount is determined by evaluating factors such as purchase volume, product type, and cooperation period. Generally, the larger the purchase volume, the greater the discount.
Q5: How do I start paying?
A: Payment can be made by wire transfer, Western Union, PayPal, Visa, Mastercard, T/T, Apple Pay, Google Pay, etc.
Q6: What is the shipping time?
A: We ship the products out within 1-3 days and provide a tracking number. Shipping time varies by country.
Q7: What qualifications and certifications does the company have? Such as ISO certification, etc.
A: Our supply manufacturers hold several authoritative certifications to ensure our products and services meet international standards and industry regulations. This includes the ISO 9001 Quality Management System certification, which indicates we have reached internationally recognized levels in product quality control, production process management, and continuous improvement, providing stable and reliable quality assurance for customers.
Q8: How about the after-sale service of products?
A: After purchasing products from our company, you will be supported by our professional technical team and after-sales team, who will help solve any problems you may encounter.
