Dimethyl hydrogen phosphite (CAS 868-85-9) — formula C2H7O3P, molecular weight 110.05; category organic chemicals.
| CAS Number | 868-85-9 |
|---|---|
| Molecular Formula | C2H7O3P |
| Molecular Weight | 110.05 |
| Melting Point | 29 °C |
| Boiling Point | 338 to 340 °F at 760 mmHg (NTP, 1992) |
| LogP | -0.5 |
| Applications | 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, Dimethyl hydrogen phosphite is used as a flame retardant on Nylon 6 fibers and, in combination with guanidine and formaldehyde, to impart flame and crease resistance to cotton textiles. The compound is also used to increase fire resistance to cellulosic textiles, acrolein-grafted polyamide fibers and gamma-irradiated polyethylene. It is used as a lubricant additive, as a chemical intermediate in the production of organophosphorous pesticides and as an adhesive. Dimethyl hydrogen phosphite has also been used as a stabilizer in oil and plaster and, in combination with pyrocatechol, as a corrosion inhibitor on steel., Feedstock for chemical synthesis., Scheduled 3B precursor to DMMP., Industry Uses: Catalyst, Not Known or Reasonably Ascertainable, Intermediate, Consumer Uses: Catalyst, Methods of Manufacturing: Dimethyl hydrogen phosphite is manufactured by the reaction of phosphorous trichloride with methanol or with sodium methoxide., Reaction of phosphorus trichloride and methanol or sodium methoxide, Synthesis: Phosphorous trichloride and methanol. Catalyst: Methyl chloride., U.S. Production: 2023: 1, 000, 000 - <5, 000 lb, 2022: 1, 2021: 1, 2020: 1, This chemical is listed as a High Production Volume (HPV) (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., (1972) PROBABLY GREATER THAN 4.54X10+5 GRAMS, (1975) PROBABLY GREATER THAN 4.5X10+5 GRAMS, Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#4072], General Manufacturing Information: All Other Basic Organic Chemical Manufacturing, Petroleum Lubricating Oil and Grease Manufacturing, Phosphonic acid, dimethyl ester: ACTIVE, Dimethyl hydrogen phosphite is a Scheduled 3B precursor. |
| Category | Organic Chemicals |
Documented applications: 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, Dimethyl hydrogen phosphite is used as a flame retardant on Nylon 6 fibers and, in combination with guanidine and formaldehyde, to impart flame and crease resistance to cotton textiles. The compound is also used to increase fire resistance to cellulosic textiles, acrolein-grafted polyamide fibers and gamma-irradiated polyethylene. It is used as a lubricant additive, as a chemical intermediate in the production of organophosphorous pesticides and as an adhesive. Dimethyl hydrogen phosphite has also been used as a stabilizer in oil and plaster and, in combination with pyrocatechol, as a corrosion inhibitor on steel., Feedstock for chemical synthesis., Scheduled 3B precursor to DMMP., Industry Uses: Catalyst, Not Known or Reasonably Ascertainable, Intermediate, Consumer Uses: Catalyst, Methods of Manufacturing: Dimethyl hydrogen phosphite is manufactured by the reaction of phosphorous trichloride with methanol or with sodium methoxide., Reaction of phosphorus trichloride and methanol or sodium methoxide, Synthesis: Phosphorous trichloride and methanol. Catalyst: Methyl chloride., U.S. Production: 2023: 1, 000, 000 - <5, 000 lb, 2022: 1, 2021: 1, 2020: 1, This chemical is listed as a High Production Volume (HPV) (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., (1972) PROBABLY GREATER THAN 4.54X10+5 GRAMS, (1975) PROBABLY GREATER THAN 4.5X10+5 GRAMS, Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#4072], General Manufacturing Information: All Other Basic Organic Chemical Manufacturing, Petroleum Lubricating Oil and Grease Manufacturing, Phosphonic acid, dimethyl ester: ACTIVE, Dimethyl hydrogen phosphite is a Scheduled 3B precursor..
Dimethyl hydrogen phosphite is a carbon-based organic compound with CAS registry number 868-85-9 and molecular formula C2H7O3P (molecular weight 110.05), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 868-85-9
Its molecular formula C2H7O3P comprises 2 C, 7 H, 3 O, 1 P atoms.
Also known as: Dimethyl hydrogen phosphite · 亚磷酸氢二甲酯
Category: organic chemicals
The CAS registry number of Dimethyl hydrogen phosphite is 868-85-9.
Molecular formula C2H7O3P, molecular weight 110.05.
It is also registered under: Dimethyl hydrogen phosphite, 亚磷酸氢二甲酯.
Recorded applications: 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, Dimethyl hydrogen phosphite is used as a flame retardant on Nylon 6 fibers and, in combination with guanidine and formaldehyde, to impart flame and crease resistance to cotton textiles. The compound is also used to increase fire resistance to cellulosic textiles, acrolein-grafted polyamide fibers and gamma-irradiated polyethylene. It is used as a lubricant additive, as a chemical intermediate in the production of organophosphorous pesticides and as an adhesive. Dimethyl hydrogen phosphite has also been used as a stabilizer in oil and plaster and, in combination with pyrocatechol, as a corrosion inhibitor on steel., Feedstock for chemical synthesis., Scheduled 3B precursor to DMMP., Industry Uses: Catalyst, Not Known or Reasonably Ascertainable, Intermediate, Consumer Uses: Catalyst, Methods of Manufacturing: Dimethyl hydrogen phosphite is manufactured by the reaction of phosphorous trichloride with methanol or with sodium methoxide., Reaction of phosphorus trichloride and methanol or sodium methoxide, Synthesis: Phosphorous trichloride and methanol. Catalyst: Methyl chloride., U.S. Production: 2023: 1, 000, 000 - <5, 000 lb, 2022: 1, 2021: 1, 2020: 1, This chemical is listed as a High Production Volume (HPV) (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., (1972) PROBABLY GREATER THAN 4.54X10+5 GRAMS, (1975) PROBABLY GREATER THAN 4.5X10+5 GRAMS, Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#4072], General Manufacturing Information: All Other Basic Organic Chemical Manufacturing, Petroleum Lubricating Oil and Grease Manufacturing, Phosphonic acid, dimethyl ester: ACTIVE, Dimethyl hydrogen phosphite is a Scheduled 3B precursor..
Category: Organic Chemicals.
Independent reference data for Dimethyl hydrogen phosphite (CAS 868-85-9), compiled from public chemistry databases.
| CAS Registry Number | 868-85-9 |
|---|---|
| PubChem CID | 13361 |
| Molecular formula | C2H7O3P |
| IUPAC name | methoxyphosphonoyloxymethane |
| UNII (FDA) | ST4TBO000H |
| 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 |
| 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 |
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
| 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]
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.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 亚磷酸氢二甲酯