Disodium phosphate

描述

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. Solubility: 11.8 g/100 g water at 25 °C; Density: 0.5-1.2 g/cm³; Decomposition: ~250 °C.

标识信息

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

计算分子描述符

Molecular Weight	141.959
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	141.94078407
Monoisotopic Mass	141.94078407
Topological Polar Surface Area	83.4
Heavy Atom Count	7
Formal Charge	0
Complexity	46.5

理化性质

Solubility	11.8 g/100 g water at 25 °C
Density	0.5-1.2 g/cm³
Decomposition	~250 °C
pH	pH = 9.1 for 1% aq soln at 25 °C

法规状态

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)

GHS 危害分类

GHS 通报统计	70.3% (744 / 1059)
已通报的危害声明	H319 (29.7%)

同义词

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

常见问题

磷酸氢二钠 的 CAS 号和分子式是什么？

CAS 号 7558-79-4；分子式 HNa2O4P；分子量 141.94 g/mol。

磷酸氢二钠 还有哪些别名？

7558-79-4, Sodium phosphate dibasic, DISODIUM PHOSPHATE, Disodium hydrogen phosphate, Disodium hydrogenorthophosphate, Acetest.

磷酸氢二钠 的法规状态如何？

已记录的法规收录：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。

磷酸氢二钠 是否属于危险品？

70.3% 的 GHS 通报认为不构成危害分类（744 / 1059）。

磷酸氢二钠 的主要物性有哪些？

Solubility: 11.8 g/100 g water at 25 °C; Density: 0.5-1.2 g/cm³; Decomposition: ~250 °C; pH: pH = 9.1 for 1% aq soln at 25 °C.

本页事实取自 PubChem（美国国家医学图书馆）与 Wikidata。批号相关的数据——含量、水分、粒度、包装、保质期——随批次 COA 出具，不在本页公布。