| Identification | Back Directory | [Name]
METHYLPHOSPHONIC DICHLORIDE | [CAS]
676-97-1 | [Synonyms]
NA 9206
CH3POCl2
methylphosphonylchloride
methanephosphonylchloride
dichlorophosphorylmethane
methyl-phosphonicdichlorid
methylphosphonyldichloride
METHYLPHOSPHONIC DICHLORIDE
Methylphosphonyl dichloride
Methanephosphonyl dichloride
METHANEPHOSPHONIC DICHLORIDE
methylphosphonoyl dichloride
Methylphosphonsαuredichlorid
dichloromethylphosphineoxide
Methyldichlorophosphine oxide
methylphosphonicaciddichloride
methylphosphonodichloridicacid
Methylphosphonicdichloride,98%
Methyl-phosphoramidedichloride
Phosphonic dichloride, methyl-
methanephosphonodichloridicacid
methyl-phosphonicaciddichloride
Phosphonic dichloride,P-Methyl-
Methanephosphonic acid dichloride
Phosphonodichloridic acid, methyl-
Methanephosphonic dichloride,Dichloromethylphosphine oxide,,Methanephosphonyl chloride,,Methylphosphonodichloridic acid, Methylphosphonyl dichloride | [EINECS(EC#)]
211-634-4 | [Molecular Formula]
CH3Cl2OP | [MDL Number]
MFCD00002071 | [MOL File]
676-97-1.mol | [Molecular Weight]
132.91 |
| Chemical Properties | Back Directory | [Appearance]
solid | [Melting point ]
31-34 °C
| [Boiling point ]
163 °C(lit.)
| [density ]
1.468 g/mL at 25 °C(lit.)
| [vapor pressure ]
760 mm Hg ( 163 °C)
| [Fp ]
>110°C | [solubility ]
Acetonitrile (Slightly), Chloroform | [form ]
solid | [Stability:]
Stable, but may decompose in the presence of water or moisture. Incompatible with water, strong bases, strong oxidizing agents. | [Water Solubility ]
Soluble in water. | [Sensitive ]
Moisture Sensitive | [BRN ]
1071305 | [CAS DataBase Reference]
676-97-1 | [EPA Substance Registry System]
Methylphosphonic dichloride (676-97-1) |
| Hazard Information | Back Directory | [Chemical Properties]
solid | [Uses]
suzuki reaction | [General Description]
Strongly irritates skin. Contact may destroy or irreversibly alter skin tissue. Very toxic by ingestion, inhalation, or by skin absorption. Combustible, though may be difficult to ignite. | [Air & Water Reactions]
Fumes in moist air to form hydrogen chloride. Reacts with water to form hydrochloric acid, reaction may be violent. | [Reactivity Profile]
METHYLPHOSPHONIC DICHLORIDE is incompatible with water, strong oxidizing agents, alcohols, bases (including amines).. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291]. | [Health Hazard]
Poisonous if inhaled or swallowed. Contact causes severe burns to skin and eyes. | [Fire Hazard]
METHYLPHOSPHONIC DICHLORIDE may burn but does not ignite readily. May ignite other combustible materials (wood, paper, oil, etc.). Reacts violently with water. Flammable poisonous gases may accumulate in tanks and hopper cars. Runoff to sewer may create fire or explosion hazard. Contact causes severe burns to skin and eyes. Runoff from fire control or dilution water may cause pollution. Violent reaction with water. | [Potential Exposure]
Highly flammable; mists or Vapors may
form explosive mixture with air. Reacts with moist air forming
fumes of hydrogen chloride; may spontaneously ignite. Reacts
with water or alcohol, forming hydrochloric acid. The reaction
may be violent and ignite unreacted material. Incompatible
with oxidizers (chlorates, nitrates, peroxides, permanganates,
perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials,
strong bases, strong acids, oxoacids, epoxides, amines, ethers.
May react violently, possibly explosively, when mixed with
ethers and trace amounts of metal salts. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water or
milk. Do not induce vomiting. Keep victim quiet and maintain normal body temperature. Medical observation is
recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for
pulmonary edema, a doctor or authorized paramedic may
consider administering a drug or other inhalation therapy.
Personal Protective Methods: Wear protective eye protection, gloves, and clothing to prevent any reasonable probability of skin or eye contact. Safety equipment suppliers/
manufacturers can provide recommendations on the most
protective glove/clothing material for your operation. All
protective clothing (suits, gloves, footwear, headgear)
should be clean, available each day, and put on before
work. Contact lenses should not be worn when working
with this chemical. Wear dust-proof chemical goggles and
face shield unless full facepiece respiratory protection is
worn. Employees should wash immediately with soap when
skin is wet or contaminated. Provide emergency showers
and eyewash. | [Shipping]
UN9206 Methyl phosphonic dichloride, Hazard
class: 6.1; Labels: 6.1-Poisonous materials, 8-Corrosive
material. Domestic (United States), Inhalation Hazard Zone
B. UN3390 Toxic by inhalation liquid, corrosive, n.o.s.
with an LC50 # 1000 mL/m3 and saturated vapor concentration ≥ 10 LC50 Hazard Class: 6.1; Labels: 6.1-
Poisonous materials, 8-Corrosive material, Technical Name
Required, Inhalation Hazard Zone B | [Description]
Methyl phosphonic dichloride is a low meltingsolid or colorless liquid. Molecular weight = 132.91;Boiling point = 162℃; Freezing/Melting point 5 32℃;Flash point = $ 50℃ (oc). Mixes violently with water.Potential Exposure: Used as a chemical intermediate inpesticide manufacture | [Waste Disposal]
Use a licensed professional
waste disposal service to dispose of this material. Dissolve
or mix the material with a combustible solvent and burn
in a chemical incinerator equipped with an afterburner and
scrubber. All federal, state, and local environmental
regulations must be observed | [Production Methods]
The oxidation of lowvalency organophosphorus compounds is important mainly in the case of the thiophosphonic acid chlorides. This method is used in the production of methylphosphonic acid dichloride by reaction of methyldichlorophosphine with sulfuryl chloride or chlorosulfuric acid. Elemental sulfur reacts with MePCl2 in the presence of catalytic quantities of tetraalkylphosphonium salts to form methylthiophosphonic acid dichloride.
| [storage]
Color Code—White: Corrosive or Contact Hazard;Store separately in a corrosion-resistant location. Prior toworking with this chemical you should be trained on itsproper handling and storage. Store in tightly closed containers in a cool, well-ventilated area. Sources of ignition, suchas smoking and open flames, are prohibited where thischemical is handled, used, or stored. Use only nonsparkingtools and equipment, especially when opening and closingcontainers of this chemical. Wherever this chemical is used,handled, manufactured, or stored, use explosion-proof electrical equipment and fittings | [Purification Methods]
Methylphosphonic dichloride [676-97-1] M 132.9, m 33o, 33-37o, b 53-54o/10mm, 64-6 7o/20.5mm, 86o/44mm, 162o/760mm, d 4 1.4382. Fractionally redistil it until the purity as checked by hydrolysis and acidimetry for Clis correct and the distillate should solidify on cooling. [Kinnear & Perren J Chem Soc 3437 1952, Crofts & Kosolapoff J Am Chem Soc 75 3379 1952, for IR see McIvor et al. Can J Chem 34 1611 1956, Beilstein 4 IV 3509.] | [Incompatibilities]
Reacts violently with water, alcohols,forming hydrochloric acid/hydrogen chloride vapor. Thereaction may be violent. Corrodes metals. Incompatiblewith strong oxidizers, alcohols, bases (including amines).May react violently, possibly explosively, when mixed withethers and trace amounts of metal salts. |
| Safety Data | Back Directory | [Hazard Codes ]
T+ | [Risk Statements ]
14-26-34 | [Safety Statements ]
26-36/37/39-45 | [RIDADR ]
UN 3390 6.1/PG 1
| [WGK Germany ]
3
| [RTECS ]
TA1840000
| [F ]
10 | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
I | [Safety Profile]
Poison by inhalation.
A corrosive irritant to the eyes, skin,
and mucous membranes. When heated
to decomposition it emits toxic fumes
of Cland POx. | [Hazardous Substances Data]
676-97-1(Hazardous Substances Data) |
|