
Sodium Trimetaphosphate CAS 7785-84-4



Factory Supply Sodium Trimetaphosphate CAS 7785-84-4 with Best Price
- Appearance: White powder
- Purity: 99. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: Sodium Trimetaphosphate Supplier & Manufacturer
Sodium Trimetaphosphate: The Complete Guide
- Item 1: Basic Info of Sodium Trimetaphosphate
- Item 2: What is Sodium Trimetaphosphate?
- Item 3: Sodium Trimetaphosphate Uses
- Item 4: The Manager has Something to Say
- Item 5: Production Method of Sodium Trimetaphosphate
- Item 6: Identification Test and Content Analysis
- Item 7: Quality Control of Sodium Trimetaphosphate
- Item 8: Hot Sale Products
- Item 9: Get Sodium Trimetaphosphate Quotation
Sodium Trimetaphosphate for Sale
Basic Info of Sodium Trimetaphosphate
Chemical Name: | Sodium Trimetaphosphate |
Other Name: | STMP; TRIMETAPHOSPHATE TRISODIUM SALT; Sodium trimetaphosphate suppilers; Sodium trimetaphosphate food grade |
CAS: | 7785-84-4 |
EINECS: | 232-088-3 |
Type: | Food additives; Feed additives; Inorganic salt |
Molecular Formula: | 3Na.O9P3 |
Molecular Weight: | 305.88 |
Melting point | 53℃ [MER06] |
density | 2.49 |
storage temp. | Inert atmosphere,Room Temperature |
solubility | Water (Slightly) |
form | Powder |
Specific Gravity | 2.49 |
color | White |
Water Solubility | Soluble in water. Insoluble in alcohol. |
Brand Name: | Zhishang Chemical |
Provide: | Sodium Trimetaphosphate MSDS; Sodium Trimetaphosphate COA |
What is Sodium Trimetaphosphate?
Sodium trimetaphosphate (also known as STMP), with the molecular formula of Na 3 P 3 O 9, is the metaphosphate of salt. It has the empirical formula NaPO 3. It is a sodium salt of trimetaphosphoric acid. It is a colorless solid that is utilized solely in the food and also building and construction markets. STMP is prepared by heating the sample salt polyphosphate.
Although attracted using a details powerful structure, the triplet ions have a D 3d symmetry. Cyclic hydrolysis to create acyclic salt triphosphate:
Na 3 P 3 O 9 + H 2 O → H 2 Na 3 P 3 O 10
The major reaction of triphosphate anions is ring opening by nucleophiles including amines.
Sodium Trimetaphosphate Uses
- Medication assistance.
- Sodium trimetaphosphate acts as a cross-linking agent in cross-linked anti amylase starch.
- Sodium trimetaphosphate, Na3[P3O9], is the most stable compound in this group of reagents. The hydrated form of sodium trimetaphosphate contains 6 or 10 crystalline water molecules. Commercial production was obtained by heating NaPO 3 at 525 ° C.
- In the food industry, it is utilized as starch modifier, juice turbidity avoidance agent, meat adhesive, dispersant, stabilizer (for ice cream, cheese, and so on). It can protect against food discoloration as well as vitamin C decomposition. It is also made use of as water conditioner.
The Manager has Something to Say

This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.
Contact Us
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- Phone: +86 176 5311 3209
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If you want to buy sodium trimetaphosphate, pls contact us to get a free quote.
Production Method of Sodium Trimetaphosphate
The sodium dihydrogen phosphate method is a simple and commonly used method.
The sodium dihydrogen phosphate method is to heat the edible sodium dihydrogen phosphate, dehydrate it at 95 °C to become anhydrous sodium dihydrogen phosphate, and then send it to the box-type polymerization furnace for heating and melting polymerization. Sodium acid pyrophosphate is converted into cyclic sodium metaphosphate when heated to 260°C, polymerized into sodium trimetaphosphate when heated to 500°C, cooled and pulverized to obtain edible sodium trimetaphosphate finished product. That
NaH2PO4→Na2H2P2O7[260℃]→(NaPO3)n[500℃]→Na3P3O9
Identification Test and Content Analysis
Identification test
The sodium salt test (IT-28) of the 5% sample aqueous solution was positive. Take about 100 mg of the sample, dissolve it in 5 ml of hot dilute nitric acid test solution (TS-158), warm it in a steam bath for 10 minutes, cool it, and neutralize it with sodium hydroxide test solution (TS-224) until the litmus is neutral. , After adding silver nitrate test solution (TS-210), a yellow precipitate should be produced.
Content analysis
Accurately weigh about 800mg of the sample and put it in a 500ml volumetric flask, add 100ml of water and 25ml of nitric acid, boil for 10min on a heating plate, and after cooling, make up to volume with water and mix. Draw 20.0ml of this solution, transfer it into a 500ml conical flask, add 100ml of water, heat to just boiling, add 50ml of quinolybdenum limonene test solution (TS-202) under stirring, cover with a watch glass, and put it in a screen-type cover Boil for 1 min and cool to room temperature, stirring occasionally during cooling. Filter through a Gooch crucible (or medium-porosity sintered glass crucible) of known weight, wash the filter residue with water for 5 times, each 25ml, dry at about 225°C for 30min, cool and weigh. Each milligram of precipitate thus obtained is equivalent to 32.074 mg of phosphorus pentoxide (P2O5).
Reference
- Sodium trimetaphosphate – WikiPedia
- Bezold, Dominik; Dürr, Tobias; Singh, Jyoti; Jessen, Henning J. (2020). “Cyclotriphosphate: A Brief History, Recent Developments, and Perspectives in Synthesis”. Chemistry – A European Journal.
Sodium Trimetaphosphate Supplier and Manufacturer
As a sodium trimetaphosphate supplier and manufacturer with strict standard product quality system certificate, Zhishang Chemical has long been providing the best sodium trimetaphosphate raw materials to customers all over the world.
Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.
If you have demand for sodium trimetaphosphate and related products, please contact our service staff Zhishang Chemical – White directly, we will provide you with high-quality products at the best price.
Pre-Sales Service
* Prompt reply and 24 hours online, professional team to provide the best price and high-quality product.
* Sample testing support.
* Every batch of products will be tested to ensure its quality.
* The packing also can be according to the customers` requirement.
* Any inquiries will be replied to within 24 hours.
* We provide a Commerical Invoices, Packing Lists, Bills of loading, COA, Health certificates, and Origin certificates. If your markets have any special requirements, let us know.
After-Sales Service
* The fact of logistics information monitoring.
* Any questions about the product can be consulted at any time.
* Product has any problem can return.
Do you accept sample order?
We will make samples before mass production, and after the sample is approved, we’ll begin mass production. Doing 100% inspection during production, then doing random inspection before packing.
What’s your MOQ?
Our MOQ is 1kg. But usually we accept less quantities, such as 100g on the condition that the sample charge is 100% paid.
Is there a discount?
The different quantity has different discount.
HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
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.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.
1. ≤50kg, Express delivery recommended, usually called DDU service;
2. ≤500kg, Air shipping recommended, usually called FOB, CFR, or CIF service;
3. >500kg, sea shipping recommended, usually called FOB, CFR, or CIF service;
4. For high-value products, please select air shipping and express delivery for safe.
Quality Control of Sodium Trimetaphosphate

