Products Description
Sodium Hypochlorite, CAS 7681-52-9, molecular formula NaClO, molecular weight 74.44. It is a pale yellow transparent liquid with characteristic chlorine odour. Its pH value ranges from 11.0 to 13.0, and it decomposes gradually under light and high temperature, so cool and dark storage is required. It is classified as UN1791 Class 8 corrosive liquid. We supply different grades with adjustable available chlorine content. It is widely used as chlorine-based disinfectant and oxidant. It is normally packed in 200L plastic drums or 1000L IBC totes, and exported to water treatment plants, textile mills and sanitation product manufacturers worldwide.
Chemical Properties
| Melting point | -16 °C |
| Boiling point | 111 °C |
| density | 1.25 g/mL at 20 °C |
| vapor pressure | 17.5 mmHg ( 20 °C) |
| refractive index | 1.3870 |
| storage temp. | 2-8°C |
| solubility | Methanol (Slightly), Water (Slightly) |
| form | Solution |
| color | Light yellow |
| Specific Gravity | 1.209 |
| Odor | pale greenish to yel. liq., chlorine bleach odor |
| PH | 12-13 (20°C, 68 °F) |
| Water Solubility | decomposes. |
| Merck | 14,8628 |
| Dielectric constant | 6.7（Ambient） |
| Exposure limits | ACGIH: Ceiling 2 mg/m3 OSHA: TWA 2 mg/m3 NIOSH: IDLH 10 mg/m3; Ceiling 2 mg/m3 |
| BCS Class | 1 |
| Stability: | Stable. Contact with acids releases poisonous gas ( chlorine ). Light sensitive. Incompatible with strong acids, amines, ammonia, ammonium salts, reducing agents, metals, aziridine, methanol, formic acid, phenylacetonitrile. |
| LogP | -3.42 at 20℃ |
| CAS DataBase Reference | 7681-52-9(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium hypochlorite (7681-52-9) |
Safety Information
| Hazard Codes | C,Xi,N |
| Risk Statements | 31-34-36/38-36/37/38-50 |
| Safety Statements | 26-36/37/39-45-50A-28A-36-61-50-28 |
| RIDADR | UN 1791 8/PG 3 |
| WGK Germany | 2 |
| RTECS | NH3486300 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 28289000 |
| Hazardous Substances Data | 7681-52-9(Hazardous Substances Data) |
| Toxicity | Skin contact with the solid hypochlorite pentahydrate or its concentrated solution can cause irritation. Ingestion may cause corrosion of mucous membranes and gastric perforation. |
Product Application
It is a mainstream disinfectant for tap water, swimming pool water, aquaculture water and municipal sewage to sterilize, remove algae and reduce chroma. It serves as bleaching agent for cotton, linen textiles and paper pulp. It is widely formulated into sanitizers and surface disinfectants for food factories, hospitals and public areas. In wastewater treatment, it oxidizes cyanide, ammonia nitrogen and organic contaminants. It also acts as deodorant for waste stations and livestock farms. Its flexible concentration options make it suitable for heavy-duty cleaning, industrial oxidation and many routine disinfection applications.
