磷酸二氢钠

Name: 磷酸二氢钠
Brand: 济南圣和化工有限公司

CAS 7558-80-7H2NaO4PMW 119.977

本页收录磷酸二氢钠，CAS 登记号为 7558-80-7，分子式 H2NaO4P，分子量 119.977，归类于食品加工助剂。作为主营产品之一，济南圣和化工有限公司可提供从公斤级到吨级的稳定供货，随货附 COA 与质检资料。

产品概览

CAS号	7558-80-7
分子式	H2NaO4P
分子量	119.977
熔点	200 °C (decomposes)
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	食品加工助剂；营养强化剂；食品及饲料添加剂
类别	食品加工助剂\|营养强化剂\|食品及饲料添加剂

应用领域

食品加工助剂；营养强化剂；食品及饲料添加剂

磷酸二氢钠的核心用途是食品加工助剂，同时在营养强化剂等方向也有成熟应用。不同用途对纯度与杂质指标的要求不同，建议在采购前与我们的技术团队确认规格细节。

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

采购提示：本产品按按订单/批次确认(不公开发布)起订发货，收到货物后请先核对包装完好性再行入库。储存条件为阴凉干燥、密封保存；如需 MSDS 或运输说明，可在询价时一并索取。

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

作为化工原料供应服务商，济南圣和化工有限公司长期服务于化工贸易、食品添加、医药中间体、日化原料等行业的采购需求。除磷酸二氢钠外，您还可以在站内按 CAS 号或产品分类检索更多品类，获取规格与报价。

常见问题

磷酸二氢钠的 CAS 号是多少？

磷酸二氢钠的 CAS 号为 7558-80-7。

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。

磷酸二氢钠有什么用途？

主要应用于食品加工助剂；营养强化剂；食品及饲料添加剂。

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

Monosodium phosphate is identified by CAS 7558-80-7, molecular formula H2NaO4P and molecular weight 119.96 g/mol. UNII KH7I04HPUU; ChEBI 37585; InChIKey AJPJDKMHJJGVTQ-UHFFFAOYSA-M. Melting Point: 200 °C (decomposes); Solubility: 121; Density: 2360 kg/cu m.

Identification

CAS Registry Number	7558-80-7
PubChem CID	23672064
Molecular formula	H2NaO4P
Molecular weight	119.96 g/mol
IUPAC name	sodium dihydrogen phosphate
InChIKey	AJPJDKMHJJGVTQ-UHFFFAOYSA-M
UNII (FDA)	KH7I04HPUU
ChEBI ID	CHEBI:37585

Computed Descriptors

Molecular Weight	119.977
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	119.95883982
Monoisotopic Mass	119.95883982
Topological Polar Surface Area	80.6
Heavy Atom Count	6
Formal Charge	0
Complexity	61.9

Physical & Chemical Properties

Melting Point	200 °C (decomposes)
Solubility	121
Density	2360 kg/cu m

Physical description & handling notes

Dry Powder; Other Solid; Large Crystals; CBI; Liquid; Liquid; Other Solid
A white odourless, slightly deliquescent powder, crystals or granules
Colorless or white solid; Slightly hygroscopic; [Hawley] White powder; [MSDSonline]
Colorless, monoclinic crystals
White crystalline powder
Odorless

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; SEQUESTRANT: 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	89% (597 / 671)

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; SEQUESTRANT: 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

89% (597 / 671)

GHS Hazard Classification

GHS notification summary	89% (597 / 671)
Reported hazard statements	H319 (11%)

This chemical does not meet GHS hazard criteria for 89% (597 of 671) of all reports.

H319 (11%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Documented Uses

Used as a pH buffer (baking powders, fleet enema solutions, electroplating baths, and acid cleaners), sequestrant for foods, emulsifier, laboratory reagent, metal phosphatising reagent, and textile dyeing/printing auxiliary; Also used to treat boiler water and wastewater, remove halogen from waste gases, supplement animal feed, and acidify urine; [HSDB]
Acid and Alkali Cleaning of Metals [Category: Clean]
Electroplating [Category: Plate]
Sewer and Wastewater Treatment [Category: Industry]
Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
Farming (Feed Additives) [Category: Industry]

Synonyms

7558-80-7; Monosodium phosphate; SODIUM DIHYDROGEN PHOSPHATE; Sodium acid phosphate; Sodium phosphate, monobasic; Sodium primary phosphate; Acid sodium phosphate; Monosodium monophosphate; Monobasic sodium phosphate; Monosodium dihydrogen orthophosphate; Monosodium phosphate, anhydrous; Monosodium orthophosphate; Monosorb XP-4; Primary sodium phosphate; Sodium dihydrogen phosphate, anhydrous; Sodium phosphate (Na(H2PO4))

Frequently Asked Questions

What are the CAS number and molecular formula of Monosodium phosphate?

CAS 7558-80-7; molecular formula H2NaO4P; molecular weight 119.96 g/mol.

What other names is Monosodium phosphate known by?

7558-80-7, Monosodium phosphate, SODIUM DIHYDROGEN PHOSPHATE, Sodium acid phosphate, Sodium phosphate, monobasic, Sodium primary phosphate.

What is the regulatory status of Monosodium phosphate?

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; SEQUESTRANT: Food Additives.

Is Monosodium phosphate classified as hazardous?

89% of GHS notifications report no hazard classification (597 of 671).

What are the key physical properties of Monosodium phosphate?

Melting Point: 200 °C (decomposes); Solubility: 121; Density: 2360 kg/cu m.

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.