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Sodium hypochlorite

Sodium hypochlorite
Sodium hypochlorite structure
CAS No.
7681-52-9
Chemical Name:
Sodium hypochlorite
Synonyms
javex;naocl;milton;purinb;clorox;deosan;chloros;chlorox;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
vapor pressure 
17.5 mmHg ( 20 °C)
refractive index 
1.3870
storage temp. 
2-8°C
form 
Solution
color 
Light yellow
Specific Gravity
1.209
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.

History

Sodium hypochlorite exists as an aqueous solution from 5 15% NaOCl and is commonly called bleach. Household bleach is typically a 5.25% solution, and industrial bleach is sold as a 12% solution. When sodium hypochlorite is used in this entry, it is assumed to be the aqueous solution, which is clear, slightly yellow, corrosive, and has a distinctive chlorine smell. Chorine gas was discovered by Carl Wilhelm Scheele (1742 1786) in 1774 and known initially as depholgisticated salt spirit. In 1787, the French chemist Claude Louis Berthollet (1749 1822) experimented with aqueous solution of chlorine gas as bleaching agents. Based on Berthollet's work, the Javel Company located on the outskirts of Paris began to produce bleaches in 1788. Chlorine gas was dissolved in a solution of soda potash (potassium carbonate) to obtain a product called liqueur de Javel, which was potassium hypochlorite. Potash treated with chlorine gas was also used to produce bleaching powders. In 1820, Antoine Germaine Labarraque (1777 1850), an apothecary, substituted cheaper soda ash (sodium carbonate) for potash to produce Eau de Labarraque or Labarraque solution, which was sodium hypochlorite. Eau de Labarraque was used as a disinfectant and to bleach paper. Bleaching powders, borax, lye, and blueing were used as bleaches throughout the 19th century.
Sodium hypochlorite is the primary hypochlorite used as a bleach and disinfectant, accounting for 83% of world hypochlorite use, with calcium hypochlorite accounting for the remaining 17%. Approximately 1 million tons of sodium hypochlorite was used globally in 2005, with about half this amount used in households for laundry bleaching and disinfection. The other half was used primarily for wastewater and drinking water treatment; other uses include pool sanitation, bleaching of pulp, paper, and textiles, and as an industrial chemical.

Uses

Aq solution as bleach, disinfectant; chlorination of swimming pools; sanitation of drinking water.

Uses

NaOCl is a strong oxidizer used in swimming pools, and when diluted to 5.25%, it is known as the laundry bleach Clorox.

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.

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.

Hazard

Fire risk in contact with organic materials. Toxic by ingestion, strong irritant to tissue.

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.

Side effects

Sodium hypochlorite, commonly known as bleach, may be used as a disinfectant solution. It is a strong irritant; however, isolated reports of CoU to sodium hypochlorite exist. The mechanism for the Cou is uncertain.
Hostynek et al. describe a 36-year-old woman who developed an intensely pruritic maculopapular rash to a hypochlorite-containing cleaning product that she spilled on her leg. The rash progressed to involve her trunk and extremities and was associated with teary eyes, dyspnea, and facial edema. There was a history of a previous sensitizing event, and open testing to 1% sodium hypochlorite produced an immediate urticarial reaction. The authors suggest that this could be due to an immunological mechanism given the generalized symptoms; however, no confirmatory testing was performed and the potential of sodium hypochlorite to cause nonimmunologic Cou was evident with four of 10 controls experiencing a wheal-and-flare reaction to open application of 6% sodium hypochlorite.
Caliskan et al. described a 32-year-old female who developed severe lip edema and breathing difficulty after using a sodium hypochlorite irrigation during endodontic treatment. A scratch test to sodium hypochlorite resulted in immediate erythema and edema that began to extend up the patient’s arm. She also had a history of breathing difficulties and had developed dermatitis from her hands to elbows with the use of household cleaning agents.
Neering reported on a patient who had experienced intermittent Cou to chlorinated pools and contact with a cleansing agent containing sodium hypochlorite. A scratch test to chlorinated water was strongly positive in this patient, but negative in five controls, and closed patch testing to sodium hypochlorite was strongly positive at three hours.

Safety Profile

Mddly toxic by ingestion. Human systemic effects by ingestion: somnolence, blood pressure lowering, corrosive to skin, nausea or vomiting. Human mutation data reported. An eye irritant. Corrosive and irritating by ingestion and inhalation. The anhydrous salt is highly explosive and sensitive to heat or friction. Explosive reaction with formic acid (at So), phenylacetonitrile. Reacts to form explosive products with amines, ammonium salts (e.g., ammonium acetate, (NH4)2CO3, ammonium nitrate, ammonium oxalate, (NH4)3P04), aziridme, methanol. Violent reaction with phenyl acetonitrile, cellulose, ethyleneimine. Solutions in water are storage hazards due to oxygen evolution. When heated to decomposition it emits toxic fumes of NaaO and Cl-. Used as a bleach.

Sodium hypochlorite Preparation Products And Raw materials

Raw materials

Preparation Products


Sodium hypochlorite Suppliers

Global( 289)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shanghai Bojing Chemical Co.,Ltd.
+86-21-37122233
+86-21-37127788 Candy@bj-chem.com CHINA 493 55
Hebei Chisure Biotechnology Co., Ltd.
+8613292890173
0311 66567340 luna@speedgainpharma.com CHINA 1017 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 27142 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 sales@jushengtech.com CHINA 28237 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 8260 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6370 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 sales@guangaobio.com CHINA 23049 58
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30163 84
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 sale@aladdin-e.com China 24986 65
Shanghai Bojing Chemical Co., Ltd 13681836088
021-37597788 bj@bj-chem.com China 466 58

View Lastest Price from Sodium hypochlorite manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-12-20 Sodium hypochlorite
7681-52-9
US $1.00 / kg 1kg 99% 500kg career henan chemical co
2019-04-11 sodium hypochlorite
7681-52-9
US $10.00 / kg 1kg 99.5% 50000 kg/ week Hebei Chisure Biotechnology Co., Ltd.

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