十二水磷酸二钠

Name: 十二水磷酸二钠
Brand: 济南圣和化工有限公司

CAS 10039-32-4Na2HPO4MW 141.959

济南圣和化工主营供应十二水磷酸二钠（CAS 10039-32-4），归类于无机化学品，分子式 Na2HPO4，分子量 141.959。我们面向国内化工贸易与生产企业提供稳定的现货供应，报价响应快，支持对公转账并可开具增值税发票。

产品概览

CAS号	10039-32-4
分子式	Na2HPO4
分子量	141.959
纯度	按批次COA提供(不公开发布)
包装	按订单/批次确认(不公开发布)
应用领域	无机化学品
类别	无机化学品

应用领域

无机化学品

该产品的下游应用集中在无机化学品。不同客户工艺差异较大，我们支持按需提供样品与小批量试用。

包装与储存

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

运输常规化工运输

样品可协商提供

交期现货/按订单安排

供货能力：十二水磷酸二钠备有现货，包装形式为按订单/批次确认(不公开发布)。我们支持对公转账并开具增值税发票，山东省内可安排快速配送，省外按物流时效发货，具体请联系 info@591daili.com。

质量与文件

每批产品随货提供 COA（分析证书）；可按需提供 MSDS/技术数据表及第三方检测报告。纯度与包装以批次 COA 及订单确认为准。

关于供应商

选择济南圣和化工有限公司的理由：产品信息透明（含 CAS、分子式、理化参数）、报价响应快（一个工作日内）、单证齐全（COA/MSS/质检资料按需提供）、支持批量与长期协议供货。如需十二水磷酸二钠以外的配套原料，也欢迎一并列出需求清单。

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 号为 10039-32-4。

该产品的纯度和包装规格是什么？

常规纯度规格为按批次COA提供(不公开发布)，包装为按订单/批次确认(不公开发布)，随货提供 COA。

十二水磷酸二钠有什么用途？

主要应用于无机化学品。

如何购买或获取报价？

请发送邮件至 info@591daili.com 或通过 WhatsApp 联系，注明产品名称、CAS 号与需求数量，一个工作日内回复报价。供应商：济南圣和化工有限公司。

PubChem 公开数据

Description

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

Identification

CAS Registry Number	10039-32-4
PubChem CID	24203
Molecular formula	Na2HPO4
IUPAC name	disodium;hydrogen phosphate
UNII (FDA)	22ADO53M6F
FEMA number	2398

Computed Descriptors

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

Physical & Chemical Properties

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

Physical description & handling notes

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.

Regulatory Status

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)

GHS Hazard Classification

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]

Documented Uses

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]

Synonyms

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

Frequently Asked Questions

What are the CAS number and molecular formula of Disodium phosphate dodecahydrate?

CAS 10039-32-4; molecular formula Na2HPO4; molecular weight — g/mol.

What other names is Disodium phosphate dodecahydrate known by?

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

What is the regulatory status of Disodium phosphate dodecahydrate?

Documented regulatory listings: 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.

Is Disodium phosphate dodecahydrate classified as hazardous?

70.3% of GHS notifications report no hazard classification (744 of 1059).

What are the key physical properties of Disodium phosphate dodecahydrate?

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.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.