Description
1. Basic Identification Attributes
- Chemical Name (IUPAC): Ammonium chloride
- Common/Trade Names: Ammonium chloride, sal ammoniac
- CAS Number: 12125-02-9
- HS Code: 2811.10.00
- Molecular Formula: NH4Cl
- Synonyms: Sal ammoniac, ammonium muriate, ammonium monochloride
2. Physical & Chemical Properties
- Physical State: White crystalline powder or granules
- Color & Odor: White, odorless
- Melting Point: 338°C (sublimes without melting)
- Boiling Point: Sublimes at ~520°C
- Density: ~1.53 g/cm³
- Solubility: Highly soluble in water (~37.2 g/100 mL at 20°C)
- pH Level: Slightly acidic (~5.5 aqueous solution)
- Vapor Pressure: Negligible at room temperature
- Flash Point: Non-flammable
- Stability: Stable under normal conditions, decomposes at high temperatures
3. Safety & Hazard Attributes
- Hazard Class (GHS): Not classified as hazardous, but can be irritant
- NFPA Ratings: Health 1, Flammability 0, Reactivity 0
- Exposure Limits: OSHA PEL – 10 mg/m³ (respirable dust)
- Reactivity: Stable under normal conditions
- Incompatible Materials: Strong bases, strong oxidizers
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated place away from incompatible materials
- Container Type: Plastic or metal containers with tight seals
- Shelf Life: 3–5 years under proper storage
- Special Handling: Avoid dust formation and inhalation; handle in well-ventilated areas
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