CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Dimethyl hydrogen phosphite is a colorless liquid. (USCG, 1999) |
|---|---|
| Color/Form | Mobile, colorless liquid |
| Odor | Mild odor |
| Boiling Point | 338 to 340 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 29 °C |
| Flash Point | 85 °F (NTP, 1992) |
| Solubility | greater than or equal to 100 mg/mL at 67.1 °F (NTP, 1992) |
| Density | 1.2 (USCG, 1999) - Denser than water; will sink |
| Vapor Density | 7.9 (Air = 1) |
| Vapor Pressure | 1 mmHg at 77 °F ; 8 mmHg at 122 °F; 32 mmHg at 158 °F (NTP, 1992) |
| LogP | -1.2 |
| Autoignition Temperature | 237 °C |
| Decomposition | When heated to decomposition it emits toxic fumes of /phosphorous oxides/. |
| Viscosity | 1.06 centistokes at 25 °C |
| Refractive Index | Index of refraction: 1.4036 at 20 °C/D |
| Other Experimental Properties | Volatility: 1.92X10+4 mg/cu m at 20 °C |
| Chemical Classes | Other Classes -> Phosphite Compounds |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08 |
| GHS Hazard Statements |
H317:Sensitisation, Skin H341:Germ cell mutagenicity H351:Carcinogenicity H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P308+P313:IF exposed or concerned: Get medical advice/attention. |
COMPUTED DESCRIPTORS
| Molecular Weight | 109.04 g/mol |
|---|---|
| XLogP3 | 0 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 2 |
| Exact Mass | 109.00545605 g/mol |
| Monoisotopic Mass | 109.00545605 g/mol |
| Topological Polar Surface Area | 35.5 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 1 |
| Complexity | 46.8 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Dimethyl hydrogen phosphite is a colorless liquid. (USCG, 1999)