California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 16 - Control of Hazardous Substances › Article 110 - Regulated Carcinogens › Appendix B to Section 5200 - Substance Technical Guidelines, MDA

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
I. IDENTIFICATION
A. Substance identification.
1. Synonyms: CAS No. 101-77-9.
4.4'-methylenedianiline; 4,4'-methylenebisaniline;
						  methylenedianiline; dianilinomethane.
2. Formula:
						  C13H14N2
II. PHYSICAL DATA
1. Appearance and Odor: White to tan solid; amine
						  odor
2. Molecular Weight: 198.26
3. Boiling Point: 398-399 degrees C at 760 mm Hg
4. Melting Point: 88-93 degrees C (190-200 degrees
						  F)
5. Vapor Pressure: 9 mm Hg at 232 degrees C
6. Evaporation Rate (n-butyl acetate = 1):
						  Negligible
7. Vapor Density (Air=1): Not Applicable
8. Volatile Fraction by Weight: Negligible
9. Specific Gravity (Water=1): Slight
10. Heat of Combustion: -8.40 kcal/g
11. Solubility in Water: Slightly soluble in cold
						  water, very soluble in alcohol, benzene, ether, and many organic
						  solyents.
III. FIRE, EXPLOSION, AND REACTIVITY HAZARD DATA
1. Flash Point: 190 degrees C (374 degrees F) Setaflash
						  closed cup
2. Flash Point: 226 degrees C (439 degrees F) Cleveland
						  open cup
3. Extinguishing Media: Water spray; Dry Chemical;
						  Carbon dioxide.
4. Special Fire Fighting Procedures:
Wear self-contained breathing apparatus and protective
						  clothing to prevent contact with skin and eyes.
5. Unusual Fire and Explosion Hazards:
Fire or excessive heat may cause production of
						  hazardous decomposition products.
IV. REACTIVITY DATA
1. Stability: Stable
2. Incompatibility: Strong oxidizers
3. Hazardous Decomposition Products: As with any other
						  organic material, combustion may produce carbon monoxide. Oxides of nitrogen
						  may also be present.
4. Hazardous Polymerization: Will not occur.
V. SPILL AND LEAK PROCEDURES
1. Sweep material onto paper and place in fiber
						  carton.
2. Package appropriately for safe feed to an
						  incinerator or dissolye in compatible waste solyents prior to
						  incineration.
3. Dispose of in an approved incinerator equipped with
						  afterburner and scrubber or contract with licensed chemical waste disposal
						  service.
4. Discharge treatment or disposal may be subject to
						  federal, state, or local laws.
5. Wear appropriate personal protective
						  equipment.
VI. SPECIAL STORAGE AND HANDLING PRECAUTIONS
A. High exposure to MDA can occur when transferring the
						  substance from one container to another. Such operations should be well
						  ventilated and good work practices must be established to avoid spills.
B. Pure MDA is a solid with a low vapor pressure.
						  Grinding or heating operations increase the potential for exposure.
C. Store away from oxidizing materials.
D. Employers shall advise employees of all areas and
						  operations where exposure to MDA could occur.
VII. HOUSEKEEPING AND HYGIENE FACILITIES
A. The workplace should be kept clean, orderly, and in
						  a sanitary condition. The employer should institute a leak and spill detection
						  program for operations involying MDA in order to detect sources of fugitive MDA
						  emissions.
B. Adequate washing facilities with hot and cold water
						  are to be provided and maintained in a sanitary condition. Suitable cleansing
						  agents should also be provided to assure the effective removal of MDA from the
						  skin.
VIII. COMMON OPERATIONS
Common operations in which exposure to MDA is likely to
						  occur include the following: Manufacture of MDA; Manufacture of Methylene
						  diisocyanate; Curing agent for epoxy resin structures; Wire coating operations;
						  and filament winding.