Storage, handling, process hazards, PPE and emergency procedures for the remaining 25 of 50 toxic, carcinogenic and Schedule chemicals — covering monomers, industrial gases, solvents and process by-products.
| 1 | DMS exposure is a medical emergency — delayed ocular damage irreversible |
| 2 | Flush eyes 20+ min; immediate ophthalmology |
| 3 | Hospital for 24 hr observation even if asymptomatic |
| 4 | Notify DISH — Schedule substance |
| 1 | SCBA mandatory — extremely toxic |
| 2 | Move victim to fresh air; O₂; 108 |
| 3 | No specific antidote — supportive care (ICU) |
| 4 | Notify DISH + SPCB for fumigation incidents |
| 5 | Post-fumigation: gas clearance certificate before entry |
| 1 | Treat as cyanide poisoning — amyl nitrite + sodium thiosulphate |
| 2 | Call 108; move to fresh air; CPR if needed |
| 3 | CO₂ or foam for fire |
| 4 | Spill: eliminate ignition sources; absorb with dry sand |
| 1 | Evacuate — explosive and carcinogenic |
| 2 | SCBA for emergency team |
| 3 | Shut off supply; ventilate |
| 4 | Notify PESO + DISH immediately |
| 5 | Biological monitoring: urinary thiodiglycolic acid for all workers |
| 1 | Move to fresh air; bronchodilator + steroids (hospital) |
| 2 | Sensitised workers must leave industry — no cure |
| 3 | Spill: neutralise with 5–10% ammonia; absorb |
| 4 | Medical surveillance: spirometry every 6 months for spray painters |
| 1 | Metal fume fever: rest; fluids; symptoms resolve in 24 hr — but verify no other metal exposure |
| 2 | Dust cloud: evacuate; ventilate; P2 masks for cleanup |
| 3 | No serious chemical emergency for this material |
| 1 | Dust cloud: evacuate; ventilate; P3 respirator for cleanup |
| 2 | No acute chemical emergency |
| 3 | Chronic: lung function monitoring for workers with daily dust exposure |
| 1 | Dust explosion: evacuate; call fire brigade |
| 2 | Do NOT use water on burning aluminium — reacts violently |
| 3 | Dry sand or special Class D powder for fire |
| 4 | Control dust generation; earthing for all equipment |
| 5 | Post-incident structural survey for damage |
| 1 | Metal fume fever: rest; fluids; resolves in 24–48 hr |
| 2 | Persistent symptoms: check for other metal fume exposure |
| 3 | Dust spill: sweep; no major emergency |
| 1 | Call 108 immediately |
| 2 | Amyl nitrite + sodium thiosulphate (trained personnel only) |
| 3 | CPR if unresponsive |
| 4 | SCBA for rescue team |
| 5 | Notify Poison Control 1800-11-6117 |
| 1 | CO₂ or foam for fire |
| 2 | Oil-soaked rags: store in closed metal bins filled with water — spontaneous ignition hazard |
| 3 | Spill: absorb with dry sand; no sewers |
| 4 | Skin: wash with soap and water; dermatitis — occupational dermatology review |
| 1 | Ingestion: call 108 — antidote ethanol or fomepizole IV |
| 2 | Flush skin/eyes with water |
| 3 | Spill: absorb with dry earth; prevent drain entry (aquatic toxicity) |
| 4 | Kidney function monitoring for any significant ingestion |
| 1 | Spill: absorb with dry earth; no acute hazard |
| 2 | Fire: CO₂ or foam |
| 3 | No significant chemical emergency for normal quantities |
| 1 | Br₂ release: SCBA — extremely toxic, TLV-C 0.2 ppm |
| 2 | Evacuate area; water fog to suppress bromine vapour |
| 3 | Neutralise HBr spill with soda ash |
| 4 | Skin/eye: flush 20 min; hospital |
| 1 | Evacuate 200m downwind |
| 2 | SCBA-only response — 0.2 ppm TLV-C, 3 ppm IDLH |
| 3 | Water fog to suppress bromine vapour |
| 4 | Neutralise spill with dilute sodium thiosulphate or sodium carbonate |
| 5 | Hospital for any respiratory exposure — delayed pulmonary oedema risk |
| 1 | Fire in N₂O-enriched area: large water cooling to cylinders |
| 2 | Shut off supply; ventilate |
| 3 | O₂-deficiency: SCBA; rescue as for nitrogen asphyxiation |
| 4 | Medical: N₂O abuse/chronic exposure causes B₁₂ deficiency and peripheral neuropathy |
| 1 | SO₂ release: evacuate; water fog to absorb |
| 2 | SCBA for responders if conc. SO₂ generated |
| 3 | Neutralise acid source; dilute spill with water |
| 4 | Asthmatic workers: highest risk — remove from exposure immediately if SO₂ detected |
| 1 | CO₂ for fire — water is ineffective on hydrazine flames |
| 2 | Move victim: skin/eye flush 20 min; hospitalise |
| 3 | Spill: contain; absorb with dry earth (NOT metal-contaminated materials — fire risk) |
| 4 | Carcinogen: medical surveillance; biological monitoring |
| 5 | Notify DISH — hazardous and carcinogenic chemical |
| 1 | Move to fresh air; O₂; hospital |
| 2 | Phosgene risk if hot surface involved — 24 hr observation |
| 3 | Spill: absorb with dry earth; scheduled waste disposal |
| 4 | Annual kidney function + liver enzymes for workers |
| 5 | Phase out degreasing use — carcinogen Group 1 |
| 1 | Air embolism (air injection under skin): 108 immediately — hyperbaric O₂ needed |
| 2 | Cylinder valve damage: move to open area; do not attempt to stop escaping air |
| 3 | PESO notification for any compressed air vessel rupture |
| 1 | Skin/eye: flush 20 min water |
| 2 | HCl fume release: ventilate; SCBA if conc. |
| 3 | Spill: neutralise with soda ash; absorb with dry earth |
| 4 | Spent etchant: copper-bearing scheduled waste — SPCB disposal |
| 1 | CO₂ for fire — water jet disperses vapour widely |
| 2 | Evacuate — vapour explosion risk in any enclosed space |
| 3 | Earthing for all equipment during transfer |
| 4 | Notify DISH + PESO for any significant spill; spill control contractor required |
| 1 | Water reaction: do NOT apply water to molten or bulk maleic anhydride — violent reaction |
| 2 | Fire: dry sand; CO₂ |
| 3 | Spill: dry containment; sweep into sealed bags |
| 4 | Skin/eye: flush 20 min water (maleic acid forms — continue flushing) |
| 5 | Pulmonary function tests for exposed workers |
| 1 | Same as nitrobenzene — methylene blue for severe MetHb |
| 2 | Remove contaminated clothing; flush skin 15 min |
| 3 | Hospital for any significant exposure |
| 4 | Annual haematological monitoring for all workers |
| 1 | Identify composition before any emergency action if possible |
| 2 | Contain with earthen bunding; no mixing with other chemicals |
| 3 | SCBA for large spill — composition unknown; may release toxic vapours |
| 4 | Notify SPCB — mixed acid waste is scheduled hazardous waste |
| 5 | Specialist contractor for neutralisation if composition unknown |