Chloro Chemicals| | | | | CAUSTIC SODA FLAKES / LYE | | | | | | | Properties | | Appearance | White flakes/Pellets, colourless viscous liquid. | | Boiling point-Lye /Flakes | 1390oC/142-148°C | | Melting point-Lye / Flakes | 318.4°C | | Specific Gravity - Lye / Flakes | 2.12 at 24°C/4°C | | Physical state | Solid/Lye | | Solubility in water | Soluble | | pH | 14 | | Odour | Odour less | | Others | Soluble in alcohol, methanol, and glycerol |
| | | | | | Chemical Identity | | Formula: NaOH | CAS No. 1310-73-2 | | UN No. 1823/1824 | Codes/Label-corrosive, Class-8 | | Hazchem Code: | 2R |
| | | | | | Specification | | NaOH (on dry basis) | 99.5% (min) | | Na2CO3 (on dry basis) | 0.4 % (max) | | NaCl (on dry basis) | 0.1 % (max) | | Iron as Fe (on dry basis) | 20 PPM (max) | | Sulphate as Na2SO4 | 0.1% (max) | | Silicate as SiO2 | 0.02 % (max) | | Copper (Cu) | 2.0 PPM (max) | | Manganese (Mn) | 1.0 PPM (max) | | Manganese (Mn) | 10 PPM (max) | | Water Insoluble matter | 0.05 PPM (max) |
| | | | | | Toxicity | | Permissible Exposure Limit | 2 (Ceiling) Mg/m3 | | TLV (ACGIH) | 2 (Ceiling) Mg/m3 |
| | | | | | Field of Application | | | | | | Caustic Soda is used in: | | | Pulp and paper (in digestion process for the extraction of Chlorlignin of wood and pulp.) Aluminum (for the extraction of Alumina from Bauxite.) Soap (in saponification reaction.) Detergent (in the process of neutralizing LAB.) Petroleum Refining (for naturalizing H2S in light distillates.) Rayon (in viscous section for the extraction of cellulose from the pulp.) Power Plants (in anionic resin regeneration in D.M. Plant.) Pharmaceuticals (in Paracetamol, Analgin, Ranitidine, Ibuprofen, Ciproflaxacin etc.) | | | | | | | Packaging | | Caustic Soda Lye: | M.S.R.L./M.S. Road tankers & MS Rail Wagons. | | Flakes | 50 kg HDPE bags with LDPE Liner. |
| | | | | | Precautions | | | Keep away from water. Use Plastic face shield, PVC gloves, PVC aprons, Gum boot, safety goggles and dust masks. Provide good ventilation at the place of handling. Avoid eating or drinking during work. In case of any spillage or leak on body, wash with sufficient water. Use spray water to cool containers involved in a fire to prevent rupture. |
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