Product Identification

Product Name

Diethyl bis(2-hydroxyethyl)aminomethylphosphonate

Synonyms

2-(Diethoxyphosphorylmethyl-(2-hydroxyethyl)amino)ethanol
Diethyl (N,N-bis(2-hydroxyethyl)amino)methanephosphonoate
Diethyl [[bis(2-hydroxyethyl)amino]methyl]phosphonate
O,O-Diethyl [[bis(2-hydroxyethyl)amino]methyl]phosphonate
O,O-Diethyl [[N,N-bis(2-hydroxyethyl)amino]methyl]phosphonate
Phosphonic acid, ((bis(2-hydroxyethyl)amino)methyl)-, diethyl ester

CAS

2781-11-5

Formula

C9H22NO5P

Molecular Weight

255.29

EINECS

220-482-8

RTECS

SZ6850000

RTECS Class

Other

Beilstein/Gmelin

1958844

Beilstein Reference

6-04

Physical and Chemical Properties

Solubility in water

Soluble

Boiling Point

399

Vapor Pressure

5E-8 (25 C)

Density

1.153 g/cm3

pKa/pKb

8.21 (pKb)

Heat Of Vaporization

75.1 kJ/mol

Usage

Reactive flame retardant for rigid urethane foams.

Refractive Index

1.4649 (25 C)

First Aid Measures

Ingestion

1) Consider after ingestion of a potentially life-threatening amount of poison if it can be performed soon after ingestion (generally within 1 hour). Protect airway by placement in Trendelenburg and left lateral decubitus position or by endotracheal intubation. Control any seizures first. 2) Activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. In general, metals and acids are poorly bound and patients ingesting these materials will not likely benefit from activated charcoal. 3) Immediate dilution with milk or water may be of benefit in caustic or irritant chemical ingestions.

Inhalation

Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with inhaled beta2 agonist and oral or parenteral corticosteroids. Respiratory tract irritation, if severe, can progress to pulmonary edema which may be delayed in onset up to 24 to 72 hours after exposure in some cases.

Skin

Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician may need to examine the area if irritation or pain persists. Some chemicals can produce systemic poisoning by absorption through intact skin. Carefully observe patients with dermal exposure for the development of any systemic signs or symptoms and administer symptomatic treatment as necessary.

Eyes

Irrigate exposed eyes with copious amounts of room temperature water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Fire Fighting Measures

Flash Point

195

Exposure Controls/Personal Protection

Exposure Effects

Properties of this material have not yet been prepared. Any recommendations are of a general nature. Many chemicals cause irritation of the eyes, skin, and respiratory tract. In severe cases respiratory tract irritation can progress to ARDS/acute lung injury which may be delayed in onset for up to 24 to 72 hours in some cases Irritation or burns of the esophagus or gastrointestinal tract are also possible if caustic or irritant chemicals are ingested. ALWAYS contact your local poision control authority or medical professional for assistance.