# Poison, toxic, or allergenic effects  other respiratory at Tronox LLC
> OSHA SIR `2024021403` · 2/14/2024 · HAMILTON, MISSISSIPPI
## Severity
- **2 hospitalizations**
- **Body part:** BODY SYSTEMS
- **Nature of injury:** Poison, toxic, or allergenic effects  other respiratory
## Cause
- **Event:** Inhalation of harmful substance  single episode or single shift
- **Source:** Multiple chemicals and hazardous materials
- **Secondary source:** Special process machinery  unspecified
## Employer
- **Name:** Tronox LLC
- **Location:** 40034 Tronox Road, HAMILTON, MISSISSIPPI, 39746
- **NAICS:** 325180
- **Jurisdiction:** 1
## Narrative

An employee was going upstairs to open a process valve to vent a chlorinator; another employee was massaging the plugged down leg on the chlorinator. The plug broke free and dumped titanium tetrachloride into a sump. This caused a chemical reaction that resulted in overpressure in the sump, whose vent line failed in three places. Both employees inhaled titanium tetrachloride gas and developed upper respiratory distress. They were hospitalized.

---
*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*