Dimethylphosphine oxide

Modify Date: 2024-01-02 18:07:40

Dimethylphosphine oxide structure	Common Name	Dimethylphosphine oxide
	CAS Number	7211-39-4	Molecular Weight	78.050
	Density	N/A	Boiling Point	84.5±23.0 °C at 760 mmHg
	Molecular Formula	C₂H₇OP	Melting Point	N/A
	MSDS	N/A	Flash Point	4.9±22.6 °C

Name	dimethyl(oxo)phosphanium
Synonym	More Synonyms

Boiling Point	84.5±23.0 °C at 760 mmHg
Molecular Formula	C₂H₇OP
Molecular Weight	78.050
Flash Point	4.9±22.6 °C
Exact Mass	78.023453
PSA	40.54000
LogP	-2.21
Appearance of Characters	liquid \| white solid to light yellow
Vapour Pressure	80.6±0.1 mmHg at 25°C

Section 1: Product Identification
Chemical Name:Dimethylphosphine oxide, min. 97%
CAS Registry Number:7211-39-4
Formula:(CH3)2P(O)H
EINECS Number:none
Chemical Family:organophosphorus compound

Synonym:Dimethylphosphorus oxide

Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title compound7211-39-4100%no datano data

Section 3: Hazards Identification
Emergency Overview:Irritating to skin, eyes and respiratory tract. May be harmful if swallowed.
Primary Routes of Exposure:Inhalation, skin, eyes.
Eye Contact:Causes moderate irritation of the eyes.
Skin Contact:Causes irritation of the skin. May cause redness, itching and pain.
Inhalation:Irritating to the nose, mucous membranes and respiratory tract.
Ingestion:No specific information is available on the physiological effects of ingestion. May be harmful if swallowed.
Acute Health Affects:Irritating to skin, eyes and respiratory tract.
Chronic Health Affects:No information on long-term chronic effects.
NTP:No
IARC:No
OSHA:No

SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:no data
Autoignition Temperature:no data
Explosion Limits:no data
Extinguishing Medium:carbon dioxide, dry powder or foam.
Fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus
Special Fire Fighting Procedures:
and full protective clothing.
Hazardous Combustion andIf involved in a fire this material may emit toxic organic fumes.
Decomposion Products:
Unusual Fire or Explosion Hazards: Contact of dimethylphosphine oxide with carbon tetrachloride leads to explosive decomposition.

SECTION 6: Accidental Release Measures
Small spills can be mixed with vermiculite, sodium carbonate or other suitable non combustible adsorbent and
Spill and Leak Procedures:
swept up.

SECTION 7: Handling and Storage
Handling and Storage:Keep container tightly closed. Store in a cool, dry place.

SECTION 8: Exposure Controls and Personal Protection
Eye Protection:Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection:Wear protective clothing and gloves.
Ventilation:Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation:Handle the material in an efficient fume hood.
Additional Protection:No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:white solid
Molecular Weight:78.05
Melting Point:no data
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:no data
Odor:musty odor
Solubility in Water:slightly soluble

SECTION 10: Stability and Reactivity
Stability:air and moisture stable
Hazardous Polymerization:no hazardous polymerization
Conditions to Avoid:contact with carbon tetrachloride leads to explosive decomposition.
Incompatibility:oxidizing agents, active metals, carbon tetrachloride and halogens.
Decomposition Products:carbon dioxide, carbon monoxide, organic fumes and phosphorus oxides.

SECTION 11: Toxicological Information
RTECS Data:No information available in the RTECS files.
Carcinogenic Effects:no data
Mutagenic Effects:no data
Tetratogenic Effects:no data

SECTION 12: Ecological Information
Ecological Information:No information available

SECTION 13: Disposal Considerations
Disposal:Dispose of according to federal, state, and local regulations.

SECTION 14: Transportation
Shipping Name (CFR):Non-hazardous
Hazard Class (CFR):NA
Additional Hazard Class (CFR):NA
Packaging Group (CFR):NA
UN ID Number (CFR):NA
Shipping Name (IATA):Non-hazardous
Hazard Class (IATA):NA
Additional Hazard Class (IATA):NA
Packaging Group (IATA):NA
UN ID Number (IATA):NA

SECTION 15: Regulatory Information
TSCA:Not listed in the TSCA inventory.
SARA (Title 313):Title compound not listed.
Second Ingredient:none

SECTION 16 - ADDITIONAL INFORMATION
N/A