TMA hazard and precautiion. And theri control measure .

Hazard relatedcTMA chemical

1. TMA   Trimethylaluminium Al ₂(CH₃) ₆ (Colorless liquid, pyrophoric)

2. CLASSIFICATION HAZARDS Flammable liquid, Pyrophoric, Corrosive GHS Classification Flammable liquids (Category 2 ) Pyrophoric liquids (Category 1) Substances, which in contact with water, emit flammable gases (Category 2 ) Skin corrosion (Category 1B ) Serious eye damage (Category 1) GHS Label elements, including precautionary statements

3. HAZARDS Hazard S tatements. H225 Highly flammable liquid and vapors. H250 Catches fire spontaneously if exposed to air . H261 In contact with water releases flammable gases( methane CH4). H314 Causes severe skin burns and eye damage.

4. HAZARDS Precautionary statements P210- Keep away from heat/sparks/open flames/hot surfaces. No smoking. Do not allow contact with air . P222- Do not allow contact with air. P231-232- Handle under inert gas. Protect from moisture. P280- Wear protective gloves/ protective clothing/ eye protection/ face protection. P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/ physician. Store contents under inert gas.

5. HAZARDS Hazard Classification GHS / Hazard Categories . (Globally Harmonized System ) Flammable Liquid — Category 2 Pyrophoric Liquid — Category 1 Water‑Reactive — Emits flammable gases on contact with water. Hazard Statements : H225 : Highly flammable liquid and vapor H250 : Spontaneously flammable in air H260 : Emits flammable gases when in contact with water. H314 : Causes severe skin burns and eye damage

6.   The National Fire Protection Association (NFPA)    The National Fire Protection Association (NFPA) has established flammable liquids classes : Class IA :   Flash point below 73°F (23°C ). Pentane, Heptane. Class IB : F lash point slightly above 73°F (23°C ).Acetone , benzene , Ethanol. Class IC : F lash point at above 73°F (23°C) and below 100°F (38°C ). Class II : F lash point at or above 100°F (38°C) and below 140°F (60°C ). Diesel. Class IIIA : F lash point at or above 140°F (60°C) and below 200°F (93°C ). Pine oil Class IIIB : F lash point at or above 200°F (93°C ). Transformer Oil.

7.  Occupational Safety and Health Administration(OSHA)   OSHA has established flammable liquids classes : Class I : F lash point below 73.4°F (23°C ). Petrol Class II : flash point above 73.4°F (23°C) & below 95°F (35°C ). Deisel Class III : flash point above 95°F (35°C ) & below 140°F (60°C ). Carosin Class IV : flash point above 140°F (60°C) & below 200°F (93°C ).

8. Physical & Chemical Properties Melting Point : ~15 °C. Boiling Point : ~126–130 °C. Density : ~0.75–0.81 g/mL at 20–25 °C. Vapor Pressure : ~11 mmHg at 20 °C (higher at elevated temps). Flash Point : Around −18 °C (pyrophoric). Solubility : Soluble in hydrocarbon solvents; reacts violently with water (hydrolyzes).

9. Reactivity & Incompatibilities Air/Moisture Sensitivity : Extremely pyrophoric—ignites spontaneously on exposure to air or moisture. Reacts Violently With : Water, oxygen, acids, alcohols, halogenated compounds, oxidizers. If Chemical exposed to water then Produce flammable Gas Methane. Al 2 (CH 3 ) 6  +  6 H 2 O →  2 Al(OH) 3  +  6 CH 4

10. Firefighting Measures Extinguishing Media : Use dry chemical powders, soda ash, lime, dry sand , or vermiculite. Do not use water, CO₂, foam, or halogenated extinguishers. Fire Hazards : Vapor‐air mixtures can explode; fire may reignite due to ongoing reactions. Protective Equipment : Full fire‑fighting gear plus self‑contained breathing apparatus (SCBA) required.

11. First Aid Measures Inhalation : Remove victim to fresh air; administer oxygen or artificial respiration as needed. Seek immediate medical attention. Skin Contact : Wash immediately with soap and water for at least 15 minutes; remove contaminated clothing; seek medical attention. Only if little amount is contact with skin.(Highly react with Water) Eye Contact : Never Flush with water ,seek immediate medical attention immediately. Ingestion : Do not induce vomiting; rinse mouth and get immediate medical attention.

12. Personal Protective Equipment's Wear protective gloves , goggles or face shield, flame‑retardant lab coat. Handle strictly under inert atmosphere (e.g., dry nitrogen or argon. Chemical splash goggles. Chemical-resistant gloves. Flame-resistant or flame-retardant clothing : like a Nomex lab coat or Nomax III A Coverall(Orange or Yellow 6cal/cm 2 .

13. Exposure Limit What is ppm?  Parts Per Million  (ppm) : is a unit used to express very small concentrations of substances, indicating the number of parts of a substance per one million parts of another, usually air. For example, 5 ppm of a gas means there are 5 volumes of that gas in every 1 million volumes of air.

14. Exposure Limit What do "Exposure Limits" mean? Permissible Exposure Limit (PEL) : A legally enforceable limit from the  Occupational Safety and Health Administration (OSHA)  in the US.  Recommended Exposure Limit(REL): A guideline from the  National Institute for Occupational Safety and Health (NIOSH) .  Threshold Limit Value(TLV): A guideline from the  American Conference of Governmental Industrial Hygienists (ACGIH) . 

15. Exposure Limit Different Meanings of a "5 ppm" Limit 8-hour Time-Weighted Average (TWA) : This is the most common meaning, representing the average concentration workers can be exposed to over an 8-hour workday without adverse health effects. For example, the PEL for formic acid is 5 ppm as an 8-hour TWA.  Short-term Exposure Limit (STEL ) : Some limits are 5 ppm for a 15-minute period during which workers can be exposed to higher concentrations, but only for a limited duration, with no excursions beyond this limit.