十二水磷酸二钠

Q: 十二水磷酸二钠 的 CAS 号是多少？

十二水磷酸二钠 的 CAS 登记号为 10039-32-4。

Q: 十二水磷酸二钠 属于哪个分类？

所属分类：无机化学品。

CAS 10039-32-4Na2HPO4MW 141.959

十二水磷酸二钠（CAS 10039-32-4）：分子式 Na2HPO4、分子量 141.959；类别无机化学品。

产品描述

十二水磷酸二钠（CAS 10039-32-4）是一种无机化学品原料。其分子式 Na2HPO4 由 2 个钠、1 个氢、1 个磷、4 个氧组成。分子量约为 141.959。作为化工品采购代理与分销渠道，我们可在国内及跨境渠道为十二水磷酸二钠寻源比价，并安排小批量试样与批次采购；下单前提供完整 COA、质检报告与合规文件，验收以批次 COA 为准。

规格参数

CAS号10039-32-4

分子式Na2HPO4

分子量141.959

应用领域CIR ingredient: Disodium Phosphate、emulsifier and buffer in foods and pharmaceuticals、metal phosphatising/electroplating reagent、scale inhibitor (boiling water treatment)、textile/leather auxiliary、sequestrant

类别无机化学品

用途与场景

登记用途：CIR ingredient: Disodium Phosphate、emulsifier and buffer in foods and pharmaceuticals、metal phosphatising/electroplating reagent、scale inhibitor (boiling water treatment)、textile/leather auxiliary、sequestrant。

采购档案

这个产品是什么

十二水磷酸二钠是一种无机化合物，登记 CAS 号为 10039-32-4，分子式 Na2HPO4（分子量 141.959），归属于无机化学品大类化工原料。

识别信息

登记 CAS 号：10039-32-4

其分子式 Na2HPO4 由 2 个钠、1 个氢、1 个磷、4 个氧组成。

别名/同义词：十二水磷酸二钠 · Disodium phosphate dodecahydrate

所属分类：无机化学品

常见问题

十二水磷酸二钠的 CAS 号是多少？

十二水磷酸二钠的 CAS 登记号为 10039-32-4。

十二水磷酸二钠的分子式与分子量是多少？

分子式 Na2HPO4，分子量 141.959。

十二水磷酸二钠还有哪些别名？

别名/同义词：十二水磷酸二钠、Disodium phosphate dodecahydrate。

十二水磷酸二钠的登记用途是什么？

十二水磷酸二钠属于哪个分类？

所属分类：无机化学品。

如何在 591daili.cn 采购十二水磷酸二钠？

请在联系页面提交产品名称、CAS 号与数量，我们作为采购代理在国内及跨境渠道为您寻源比价，安排试样与批次采购，下单前提供 COA 与合规文件。

包装与单证

包装按订单确认，从实验室小包装到吨袋大货，随订单安排而非在页面上写死。每批随货附 COA 分析证书，可另提供 MSDS；若终端用途带有法规限度（食品接触、药品或化妆品），请在询价时说明执行标准，等级按该标准确定。

PubChem 公开数据

十二水磷酸二钠（CAS 10039-32-4）的公开数据库记录，列此仅供独立核对。

危险化学品分类与危害说明

GHS notification summary	70.3% (744 / 1059)
Reported hazard statements	H319 (29.7%)

This chemical does not meet GHS hazard criteria for 70.3% (744 of 1059) of all reports.

H319 (29.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

法规与备案状态

Regulatory & Food Contact	FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFI FDA Inventory of Food Contact Substances Listed in 21 CFR: 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 notification summary	70.3% (744 / 1059)

Regulatory & Food Contact

FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFI
FDA Inventory of Food Contact Substances Listed in 21 CFR: 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 notification summary

70.3% (744 / 1059)

物理形态与操作说明

Sodium phosphate, dibasic appears as a colorless to white crystalline solid. Soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Used as a fertilizer, in pharmaceuticals, in food processing, and for many other uses.
Liquid; Dry Powder; Liquid; Liquid; Other Solid; CBI; Dry Powder; Other Solid
Anhydrous disodium hydrogen phosphate is a white, hygroscopic, odourless powder. Hydrated forms available include the dihydrate: a white crystalline, odourless solid; the heptahydrate: white, odourless, efflorescent crystals or granular powder; and the dodecahydrate: white, efflorescent, odourless powder or crystals
Colorless or white hygroscopic solid; [Hawley] White powder; [MSDSonline]
WHITE OR COLOURLESS HYGROSCOPIC CRYSTALS OR POWDER.
Colorless, translucent crystals or white powder.

公开数据库收录的理化数据

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

这个物质在各数据库里的编号

CAS Registry Number	10039-32-4
PubChem CID	24203
分子式	Na2HPO4
IUPAC 名称	disodium;hydrogen phosphate
UNII（FDA）	22ADO53M6F
FEMA 编号	2398

数据库记载的用途

CIR ingredient: Disodium Phosphate
Used as emulsifier and buffer in foods and pharmaceuticals, metal phosphatising/electroplating reagent, scale inhibitor (boiling water treatment), textile/leather auxiliary, sequestrant, mordant in dyeing, fireproofing agent, reagent and buffer in analytical chemistry, cathartic, and veterinary laxative; Also used for weighting silk and in pottery glazes/porcelain/enamels, tanning, and soldering/brazing (instead of borax); [HSDB] Used in fertilizers, galvanoplastics, and as a dietary supplement; [Hawley]
Brazing [Category: Heat or Machine]
Electroplating [Category: Plate]
Soldering [Category: Heat or Machine]
Textiles (Fiber & Fabric Manufacturing) [Category: Industry]

它在各数据库里的别名

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

计算机算出的分子描述符

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

数据库摘要

Disodium phosphate dodecahydrate · CAS 10039-32-4 · Na2HPO4. UNII 22ADO53M6F. 溶解度: 11.8 g/100 g water at 25 °C; 密度: 0.5-1.2 g/cm³; Decomposition: ~250 °C.

数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。

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