Disodium phosphate (CAS 7558-79-4) — formula Na2HPO4, molecular weight 141.959.
Disodium phosphate is a chemical compound with CAS registry number 7558-79-4 and molecular formula Na2HPO4 (molecular weight 141.959).
CAS number: 7558-79-4
Its molecular formula Na2HPO4 comprises 2 Na, 1 H, 1 P, 4 O atoms.
Also known as: Disodium phosphate · sodium hydrogen phosphate · Sodium hydrogen orthophosphate
The CAS registry number of Disodium phosphate is 7558-79-4.
Molecular formula Na2HPO4, molecular weight 141.959.
It is also registered under: Disodium phosphate, sodium hydrogen phosphate, Sodium hydrogen orthophosphate.
Public-database records for Disodium phosphate (CAS 7558-79-4), reproduced here for independent cross-checking.
| GHS 通报统计 | 70.3% (744 / 1059) |
|---|---|
| 已通报的危害声明 | H319 (29.7%) |
| 法规与食品接触 | FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFI FDA 21 CFR 中列出的食品接触物质清单：FCS ACIDITY_REGULATOR; EMULSIFIER; TEXTURIZER; THICKENER: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FLAVOR Group MTDI for phosphorus from all sources, expressed as P TRS 683-JECFA 26/25 |
|---|---|
| GHS 通报统计 | 70.3% (744 / 1059) |
| 溶解度 | 11.8 g/100 g water at 25 °C |
|---|---|
| 密度 | 0.5-1.2 g/cm³ |
| Decomposition | ~250 °C |
| pH | pH = 9.1 for 1% aq soln at 25 °C |
| CAS 号 | 7558-79-4 |
|---|---|
| PubChem CID | 24203 |
| 分子式 | HNa2O4P |
| 分子量 | 141.94 g/mol |
| IUPAC 名称 | disodium;hydrogen phosphate |
| InChIKey | BNIILDVGGAEEIG-UHFFFAOYSA-L |
| UNII（FDA） | 22ADO53M6F |
| ChEBI 编号 | CHEBI:34683 |
| FEMA 编号 | 2398 |
7558-79-4; Sodium phosphate dibasic; DISODIUM PHOSPHATE; Disodium hydrogen phosphate; Disodium hydrogenorthophosphate; Acetest; Sodium phosphate, dibasic; Dibasic sodium phosphate; Disodium acid phosphate; Soda phosphate; Exsiccated sodium phosphate; disodium hydrogenphosphate; Disodium orthophosphate; Phosphoric acid, disodium salt; Sodium hydrogen phosphate; Sodium monohydrogen phosphate
| 分子量 | 141.959 |
|---|---|
| 氢键供体数 | 1 |
| 氢键受体数 | 4 |
| 可旋转键数 | 0 |
| 精确质量 | 141.94078407 |
| 单同位素质量 | 141.94078407 |
| 拓扑极性表面积 | 83.4 |
| 重原子数 | 7 |
| 形式电荷 | 0 |
| 复杂度 | 46.5 |
磷酸氢二钠 的 CAS 号为 7558-79-4，分子式 HNa2O4P，分子量 141.94 g/mol。 UNII 22ADO53M6F; ChEBI 34683; InChIKey BNIILDVGGAEEIG-UHFFFAOYSA-L. 溶解度: 11.8 g/100 g water at 25 °C; 密度: 0.5-1.2 g/cm³; Decomposition: ~250 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
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