Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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2-Chloroethylphosphonic acid(16672-87-0)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2-Chloroethylphosphonic acid
Synonyms
Chlorethephon
Ethephon
Flordimex
Kamposan
Tomathrel
CAS
16672-87-0
Formula
C2H6ClO3P
Molecular Weight
144.49
EINECS
240-718-3
RTECS
SZ7100000
RTECS Class
Agricultural Chemical and Pesticide
Merck
13,3767
Beilstein/Gmelin
1751208
Beilstein Reference
3-04-00-01780
EC Index Number
015-154-00-4
EC Class
Harmful; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance
Needles from benzene.
Solubility in water
Very soluble
Melting Point
74 - 75
Density
1.58 g/cm3 (20 C)
pKa/pKb
1.99 (pKa)
Partition Coefficient
.62
Usage
Growth regulator.
Vapor Density
4.9

First Aid Measures

Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Skin
Remove contaminated clothing, wash exposed area with copious amounts of water. A physician should examine the area if irritation or pain persists.
Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Handling and Storage

Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Discard contaminated shoes.

Hazards Identification

Inhalation
Inhalation may produce dyspnea, pleuritic chest pain, upper airway edema, pulmonary edema, hypoxemia, bronchospasm, pneumonitis, and persistent pulmonary function abnormalities. Airway hyperreactivity has also been reported.
Skin
Causes irritation.
Eyes
Causes irritation.
Ingestion
Ingestion of acids may result in burns, gastrointestinal bleeding, gastritis, perforations, dilation, edema, necrosis, vomiting, stenosis, fistula, and duodenal/jejunal injury.
EC Risk Phrase
R 20/21 34 52/53
EC Safety Phrase
S 26 28 36/37/39 45 61
UN (DOT)
3261

Exposure Controls/Personal Protection

Personal Protection
Gloves and eye shields are advised.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
Abnormal neuropsychologic function has been reported following hydrochloric acid exposure from a leaking tanker truck.
Poison Class
3

Fire Fighting Measures

Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.
Fire Potential
Nonflammable

Accidental Release Measures

Small spills/leaks
Clean up spills immediately. Avoid generating dusty conditions. Carefully scoop up and place into appropriate disposal container. Provide ventilation.

Stability and Reactivity

Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of phosphorus, carbon dioxide, chloride fumes, phosphorous fumes.

Transport Information

UN Number
3261
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