Product Identification

Product Name

Dimethylmorpholine

Synonyms

2,6-Dimethyl-2,3,5,6-tetrahydro-4h-1,4-oxazine

CAS

141-91-3

Formula

C6H13NO

Molecular Weight

115.17

EINECS

205-509-3

RTECS

QE1750000

RTECS Class

Mutagen; Primary Irritant

Beilstein/Gmelin

103036

Beilstein Reference

4-27-00-00674

Physical and Chemical Properties

Appearance

Clear liquid.

Solubility in water

Very soluble

Boiling Point

147

Vapor Pressure

5 (25 C)

Density

0.935 g/cm3 (0 C)

pKa/pKb

4.96 (pKb)

Partition Coefficient

-.1

Heat Of Vaporization

38.4

Usage

Manufacture of corrosion inhibitors, stabilizer for chlorinated solvents, rubless floor polishes, rubber accelerators, germicides, textile finishing agents, prc: fungicides.

Vapor Density

4

Refractive Index

1.445 (20 C)

First Aid Measures

Ingestion

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.

Inhalation

IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.

Skin

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

Eyes

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Handling and Storage

Storage

Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion

Irritation of the gastrointestinal tract is likely after exposure to morpholine. The amount of irritation is dependent upon the concentration.

Inhalation

Cough and nasal irritation have been seen in humans exposed to 1200 ppm for about 1.5 Minutes.

Skin

Skin contact represents a moderate degree of hazard, which decreases as the concentration decreases to 25% or less in water.

Exposure Controls/Personal Protection

Personal Protection

Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.

Respirators

Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.

Poison Class

4

Fire Fighting Measures

Flash Point

44.4

Fire Fighting

Fires involving this material should be controlled using a dry chemical, carbon dioxide or Halon extinguisher.

Fire Potential

This chemical is combustible.

Accidental Release Measures

Small spills/leaks

If you should spill this chemical, use absorbent paper to pick up all liquid spill material. Seal the absorbent paper, as well as any of your clothing which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Wash any surfaces you may have contaminated with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Stability and Reactivity

Stability

No data.

Incompatibilities

Reacts with oxidizing agents Incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides.