Home >> Product >> Benzene ring series >> Sodium hypochlorite
- Product Name: Sodium hypochlorite
- Synonyms: chloros;chlorox;cloropool;clorox;cloroxliquidbleach
- CAS No.: 7681-52-9
- Molecular Formula: ClNaO
- Molecular Weight : 74.44
- Specification : 98%
- Place of Origin: China
- Appearance :
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Description of Sodium hypochlorite
| Sodium hypochlorite Chemical Properties | |
| Melting point | -16 °C |
| Boiling point | 111 °C |
| density | 1.25 g/mL at 20 °C |
| refractive index | 1.3870 |
| storage temp. | 2-8°C |
| form | Solution |
| color | Light yellow |
| Water Solubility | decomposes. |
| Merck | 14,8628 |
| 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. |
| CAS DataBase Reference | 7681-52-9(CAS DataBase Reference) |
| EPA Substance Registry System | Hypochlorous acid, sodium salt(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. |
| Sodium hypochlorite Usage And Synthesis | |
| Chemical Properties | Sodium hypochlorite, NaOCl, is an air-unstable,pale green crystalline solid that is soluble in cold water, decomposes in hot water, and has a sweet aroma. It generally is available in one of two strengths. The household liquid bleach contains about 5.25 wt% NaCIO. The commercial product(sometimes called 15% bleach) contains 150g/L available chlorine. This is equivalent to about 13 wt% sodium hypochlorite. Sodium hypochlorite is used as a bleaching agent for paper pulp and textiles, as an oxidizing reagent, as a disinfectant, as a chemical intermediate,and in medicines. The hypochlorite ion (OCI-) is similar to wet chlorine gas in its effects on materials. Not many metals exhibit good resistance even at low temperatures and concentrations. Because hypochlorite solutions are unstable at neutral and lower pHs,they normally contain excess alkali,which modifies the aggressiveness somewhat. |
| Chemical Properties | Anhydrous sodium hypochlorite explodes; the pentahydrate is a pale-green 870 SODIUM HYPOCHLORITEcrystalline solid; orthorhombic structure; density 1.6 g/cm3; melts at 18°C; decomposed by CO2 in the air; soluble in water, 29.3 g/100 mL at 0°C; the aqueous solution is highly stable. |
| Uses | Sodium hypochlorite is marketed only as an aqueous solution because the anhydrous solid is highly unstable and can explode. The solid pentahydrate also is unstable in air, decomposed by reaction with carbon dioxide from air. Aqueous solutions are very stable. They are used for bleaching textiles and paper pulp; in cleaning solutions; in water purification; as a disinfectant for swimming pools; and as a germicide and topical antiinfective. The hypochlorite also is used as an oxidizing agent in many preparative reactions. It is an ingredient of commercial bleaching products such as Clorox and Dazzle. |
| Preparation | Sodium hypochlorite solution is obtained by passing chlorine into sodium hydroxide solution. The pentahydrate is obtained by crystallization. |
| Definition | ChEBI: An inorganic sodium salt in which hypochlorite is the counterion. |
| Uses | Aq solution as bleach, disinfectant; chlorination of swimming pools; sanitation of drinking water. |
| General Description | Green to yellow watery liquid with an odor of bleaching liquid odor. Sinks and mixes with water. |
| Air & Water Reactions | Water soluble. Decomposes into chlorine and oxygen gases in hot water. |
| Reactivity Profile | Salts of hypochlorous acid, HClO. Generally toxic, irritants and powerful oxidizers, particularly in the presence of water at higher temperature as they decompose to release oxygen and chlorine gases. On contact with urea they form the highly explosive NCl3 . When heated or on contact with acids, they produce highly toxic fumes of chlorine gas [Sax, 9th ed., 1996, p. 1905]. Can react with sulfuric acid to produce heat and chlorine gas. |
| Health Hazard | Liquid can be irritating to skin and eyes if contact is maintained. |
| Fire Hazard | Behavior in Fire: May decompose, generating irritating chlorine gas. |
| Sodium hypochlorite Preparation Products And Raw materials | |
| Preparation Products | Vat Black 25-->Atrazine-->2-(Morpholinothio)benzothiazole-->Benz[cd]indol-2(1H)-one-->2,5-Dichloronicotinic acid-->4-Chloroimidazole-->4,6-DIMETHYL-PYRIMIDINE-2-SULFONYL FLUORIDE-->4-METHYL-PYRIMIDINE-2-SULFONYL FLUORIDE-->5-METHYL-PYRIMIDINE-2-SULFONYL FLUORIDE-->N-Cyclohexyl-2-benzothiazolesulfenamide -->4-Morpholineethanesulfonic acid-->1-PYRENECARBOXYLIC ACID-->3-METHYLTHIOPHENE-2-CARBONYL CHLORIDE-->2-CHLOROSULFONYL-PYRIDINIUM, CHLORIDE-->1,3-Dibromo-5,5-dimethylhydantoin-->Vat Brown 1-->1-Amino-2,4-dibromoanthraquinone -->3,5,6-TRICHLORO-PYRIDINE-2-CARBOXYLIC ACID-->3,3-Dimethylglutaric acid-->Vat Orange 11-->3-CHLORO-6-NITRO (1H)INDAZOLE-->6-AMINO-3-CHLORO (1H)INDAZOLE-->Iodoform-->IMMEDIAL BRILLIANT GREEN GB-->4-CHLORO-1H-PYRAZOLE-3-CARBOXYLIC ACID-->Chiniofon-->chlorinated sodium phosphate-->ETHYL ANTHRANILATE-->Magentagreencrystals-->Ruthenium trichloride-->C.I.Vat Red 29-->3,3-Dimethyl-2-oxobutyric acid-->MEQUINDOX-->4-CHLORO-3-METHYL-1H-PYRAZOLE-->1-Chlorobenzotrizole-->Direct Fast Yellow RR-->5-CHLOROPYRIDIN-2(1H)-ONE-->DIRECT YELLOW 29-->1,3-Dichloro-5,5-dimethylhydantoin-->3,5-DICHLORO-2-PYRIDONE |
| Raw materials | Sodium hydroxide-->Chlorine-->Calcium oxide-->Sodium chlorate-->Calcium carbide |
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