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Sodium hypochlorite

Sodium hypochlorite
Sodium hypochlorite
CAS No.
7681-52-9
Chemical Name:
Sodium hypochlorite
Synonyms
javex;naocl;deosan;clorox;milton;purinb;chlorox;chloros;klorocin;parozone
CBNumber:
CB1705333
Molecular Formula:
ClNaO
Formula Weight:
74.44
MOL File:
7681-52-9.mol

Sodium hypochlorite 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
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
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.
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
H401 Toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 2 P273, P501
Precautionary statements:
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P310 Immediately call a POISON CENTER or doctor/physician.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Sodium hypochlorite price More Price(14)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 13440 Sodium hypochlorite solution 6-14% active chlorine basis 7681-52-9 500ml-r $88 2018-11-20 Buy
Sigma-Aldrich 13440 Sodium hypochlorite solution 6-14% active chlorine basis 7681-52-9 6x500ml-r $252 2018-11-20 Buy
Alfa Aesar 033369 Sodium hypochlorite, 11-15% available chlorine 7681-52-9 10kg $111 2018-11-16 Buy
Alfa Aesar 033369 Sodium hypochlorite, 11-15% available chlorine 7681-52-9 500g $42.6 2018-11-16 Buy
Sigma-Aldrich 239305 Sodium hypochlorite solution reagent grade, available chlorine 4.00-4.99 % 7681-52-9 25ml $45 2018-11-13 Buy

Sodium hypochlorite Chemical Properties,Uses,Production

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

Raw materials

Preparation Products


Sodium hypochlorite Suppliers

Global( 273)Suppliers
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Shanghai Bojing Chemical Co.,Ltd.
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Alfa Aesar 400-610-6006; 021-67582000
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Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
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