Sodium pyrophosphate
- CAS No.
- 7758-16-9
- Chemical Name:
- Sodium pyrophosphate
- Synonyms
- SODIUM ACID PYROPHOSPHATE;SODIUM PYROPHOSPHATE;SAPP;DISODIUM PYROPHOSPHATE;DSPP;SAPP 28;SAPP 40;TwosodiuM pyrophosphatetwo hydrogen;Na4P2O7.nH20;disodiumdiphosphate
- CBNumber:
- CB7665738
- Molecular Formula:
- H5NaO7P2
- Molecular Weight:
- 201.97
- MOL File:
- 7758-16-9.mol
- Modify Date:
- 2024/5/10 14:01:29
| Melting point | decomposes 220℃ [MER06] |
|---|---|
| Density | (hexahydrate) 1.86 |
| vapor pressure | 0Pa at 20℃ |
| storage temp. | -70°C |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | white powder |
| color | White to Off-White |
| PH | 3.5-4.5 (20℃, 0.1M in H2O, freshly prepared) |
| Water Solubility | Fully miscible in water. Insoluble in alcohol and ammonia. |
| λmax |
λ: 260 nm Amax: 0.11 λ: 280 nm Amax: 0.09 |
| Merck | 13,8643 |
| Stability | Stable. |
| InChI | InChI=1S/Na.H4O7P2.H/c;1-8(2,3)7-9(4,5)6;/h;(H2,1,2,3)(H2,4,5,6); |
| InChIKey | IQTFITJCETVNCI-UHFFFAOYSA-N |
| SMILES | O(P(O)(O)=O)P(O)(O)=O.[NaH] |
| LogP | -3.420 (est) |
| CAS DataBase Reference | 7758-16-9(CAS DataBase Reference) |
| EPA Substance Registry System | Disodium diphosphate (7758-16-9) |
Sodium pyrophosphate price More Price(6)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | SAB1304988 | ANTI-DSPP (N-TERM) antibody produced in rabbit IgG fraction of antiserum, buffered aqueous solution | 7758-16-9 | 400μL | ₹47796.6 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | P8135 | Sodium pyrophosphate dibasic practical grade | 7758-16-9 | 500G | ₹3940 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 71501 | Sodium pyrophosphate dibasic BioUltra, ≥99.0% (T) | 7758-16-9 | 100G | ₹4741.35 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 71501 | Sodium pyrophosphate dibasic BioUltra, ≥99.0% (T) | 7758-16-9 | 1KG | ₹21779.9 | 2022-06-14 | Buy |
| SRL | 21636 | Sodium Acid Pyrophosphate (SAPP) extrapure, 95% | 7758-16-9 | 100Gms | ₹240 | 2022-05-26 | Buy |
Sodium pyrophosphate Chemical Properties,Uses,Production
Chemical Properties
Disodium dihydrogendiphosphate [7758-16-9], disodium diphosphate, acidic sodium pyrophosphate, Na2H2P2O7, Mr 221.97, d 2.31. Its solubility in water is 13g Na2H2P2O7/100g H2O at 20 °C, and 20g at 80°C. The pH of a 1% aqueous solution is 4.1. The usual commercial product is the anhydrous, nonhygroscopic salt in powder form. The hexahydrate, Na2H2P2O7.6H2O, d 1.85, crystallizes from aqueous solution below 27 °C. Above this temperature, it is converted to the anhydrous form. Disodium diphosphate is used as a (tropically stable) acid carrier in baking powder, for improvement of flow properties in flour, for pH regulation, and in dental care products for prevention of tartar formation.
Preparation
Disodium dihydrogendiphosphate is produced from sodium dihydrogenmonophosphate by heating at 200-250℃：
Na2CO3+2H3PO4→2NaH2PO4+H2O+CO2↑
2NaH2PO4→Na2H2P2O7+H2O
General Description
The APP (amyloid precursor protein) gene is mapped to human chromosome 21q21.3. It encodes a integral membrane protein. APPα is a soluble protein generated by sequential cleavage with α and γ secretase.
Safety Profile
Poison by intravenous route. Moderately toxic by ingestion and subcutaneous routes. An irritant to skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of POx, and Na2O.
Sodium pyrophosphate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Rishi Chemical Works Pvt Ltd | +91-3322290068 +91-3322290071 | Kolkata, India | 43 | 58 | Inquiry |
| HRV Global Life Sciences | +91-9820219686 +91-9820219686 | Telangana, India | 379 | 58 | Inquiry |
| Pd Navkar Bio Chem Pvt Ltd | +91-8022157444 +91-8022157444 | Karnataka, India | 49 | 58 | Inquiry |
| Prakash Chemicals Agencies | +91-8511140657 | Gujarat, India | 106 | 58 | Inquiry |
| Sudeep Pharma Pvt Ltd | +91-2652840656 +91-9377599554 | Gujarat, India | 51 | 58 | Inquiry |
| Aditya Birla Chemicals | 91-22-66525000 | Maharashtra, India | 23 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Sisco Research Laboratories Pvt. Ltd. | +91-22-4268 5800 | Mumbai, India | 4317 | 58 | Inquiry |
| Icon Industries | 08048955139 | Gujarat, India | 1 | 58 | Inquiry |
| Vishnupriya Chemicals Private Limited | 08046041737 | Hyderabad, India | 220 | 58 | Inquiry |