亚磷酸氢二甲酯

Name: 亚磷酸氢二甲酯
Brand: 济南圣和化工有限公司

CAS 868-85-9C2H7O3PMW 110.05

济南圣和化工有限公司现供应有机化学品——亚磷酸氢二甲酯（CAS 868-85-9），分子式 C2H7O3P，分子量 110.05。本页理化参数仅供参考，实际常规纯度按批次COA提供(不公开发布)，以批次 COA 及订单确认为准，支持批量采购与长期供货协议。

产品概览

CAS号	868-85-9
分子式	C2H7O3P
分子量	110.05
熔点	29 °C
沸点	338 to 340 °F at 760 mmHg (NTP, 1992)
LogP	-0.5
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	有机化学品
类别	有机化学品

应用领域

有机化学品

亚磷酸氢二甲酯在有机化学品领域使用广泛。采购前请确认纯度等级与包装形式，以批次 COA 为验收依据。

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：亚磷酸氢二甲酯备有现货，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。如需亚磷酸氢二甲酯以外的配套原料，也欢迎一并列出需求清单。

常见问题

亚磷酸氢二甲酯的 CAS 号是多少？

亚磷酸氢二甲酯的 CAS 号为 868-85-9。

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。

亚磷酸氢二甲酯有什么用途？

主要应用于有机化学品。

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

Dimethyl hydrogen phosphite · CAS 868-85-9 · C2H7O3P. UNII ST4TBO000H. Boiling Point: 338 to 340 °F at 760 mmHg (NTP, 1992); Boiling Point: 170.5; Boiling Point: 171 °C.

Identification

CAS Registry Number	868-85-9
PubChem CID	13361
Molecular formula	C2H7O3P
IUPAC name	methoxyphosphonoyloxymethane
UNII (FDA)	ST4TBO000H

Computed Descriptors

Molecular Weight	110.05
XLogP3	-0.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	2
Exact Mass	110.01328108
Monoisotopic Mass	110.01328108
Topological Polar Surface Area	35.5
Heavy Atom Count	6
Formal Charge	0

Physical & Chemical Properties

Boiling Point	338 to 340 °F at 760 mmHg (NTP, 1992)
Boiling Point	170.5
Boiling Point	171 °C
Melting Point	29 °C
Flash Point	85 °F (NTP, 1992)
Flash Point	70 °C
Flash Point	70 °C (Closed cup)
Flash Point	70 °C c.c.
Solubility	In water, >10 g/100 mL at 20 °C
Density	1.2002 g/cu cm at 20 °C

Physical description & handling notes

Dimethyl hydrogen phosphite is a colorless liquid. (USCG, 1999)
Liquid
Colorless liquid; [HSDB]
COLOURLESS LIQUID.
Mobile, colorless liquid
Mild odor

GHS Hazard Classification

Reported hazard statements	H226 (71.8%), H311 (19.9%), H315 (73.5%), H317 (23.9%), H319 (76.1%), H341 (23.9%), H351 (26.2%), H412 (23.9%)

H226 (71.8%): Flammable liquid and vapor [Warning Flammable liquids]

H311 (19.9%): Toxic in contact with skin [Danger Acute toxicity, dermal]

Documented Uses

Used to make insecticides and herbicides; [ChemIDplus] Used as a lubricant additive, an adhesive, a flame retardant for fabrics, a stabilizer in oil and plaster, and as a steel corrosion inhibitor in combination with pyrocatechol; [HSDB] Used to make water treatment chemicals, flame retardants, and pharmaceuticals; [eChemPortal: SIDSUNEP]
Steel Producing [Category: Industry]
Working with Glues and Adhesives [Category: Other]
Lubricant additives; intermediate; adhesive
Feedstock for chemical synthesis.
Scheduled 3B precursor to DMMP.

Synonyms

RefChem:929181; DTXCID20164557; 212-783-8; 868-85-9; Bis(hydroxymethyl)phosphine oxide; Dimethoxyphosphine oxide; Dimethyl acid phosphite; Dimethyl hydrogen phosphite; Dimethyl hydrogen phosphonate; Dimethyl phosphite; Dimethyl phosphonate; Dimethylester kyselini fosforite; Dimethylester kyseliny fosforite; Dimethylfosfit; Dimethylfosfonat; Dimethylhydrogenphosphite

Frequently Asked Questions

What are the CAS number and molecular formula of Dimethyl hydrogen phosphite?

CAS 868-85-9; molecular formula C2H7O3P; molecular weight — g/mol.

What other names is Dimethyl hydrogen phosphite known by?

RefChem:929181, DTXCID20164557, 212-783-8, 868-85-9, Bis(hydroxymethyl)phosphine oxide, Dimethoxyphosphine oxide.

Is Dimethyl hydrogen phosphite classified as hazardous?

Hazard statements reported: H226, H311, H315, H317, H319.

What are the key physical properties of Dimethyl hydrogen phosphite?

Boiling Point: 338 to 340 °F at 760 mmHg (NTP, 1992); Boiling Point: 170.5; Boiling Point: 171 °C; Melting Point: 29 °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.