Carbonates sodium percarbonate

There are international transport regulations controlling the transport of sodium percarbonate, which assigned it to Class 5.1, oxidizing substances, however, no such compound has ever been commercialized, and sodium carbonate peroxohydrate is treated as nonhazardous. The origin of this item is not known. 

In 1993, the world capacity for sodium peroxoborate hexahydrate (tetrahydrate) was about 900,000 metric tons, of which about one-third was converted to the dehydrated compound (monohydrate). At the then prevailing prices, the total value of this business was about 6 x 10 . The world capacity for sodium carbonate peroxohydrate (percarbonate) was about 60,000 metric tons, valued at about 70 x 10 . ... 

Oxygen bleaches such as sodium carbonate peroxide (also called sodium percarbonate), sodium peroxide, or sodium perborate are made by reacting molecules with hydrogen peroxide. When the result is added to water, the hydrogen peroxide is released. 

Sodium carbonate hydrogen peroxidate ( Sodium percarbonate )... 

Mixing sodium percarbonate with acetic anhydride led to explosive shattering of the flask [1], undoubtedly caused by the formation of acetyl peroxide. The name sodium percarbonate has been used indiscriminately to describe 3 different compounds, all of which would react with acetic anhydride to give extremely explosive acetyl peroxide [2], These are sodium monoperoxycarbonate, NaOCO.OONa, [4452-58-8] sodium peroxydicarbonate, NaOCO.OOCO.ONa, [3313-92-6] and sodium carbonate sesqui hydrogen peroxidate, Na0C0.0Na.l,5H202, [15630-89-4],... 

The oxidation procedure is amenable to a number of modifications. The solvent used may be varied carbon tetrachloride, hexane, toluene and dichloro-methane have all been used successfully, although the latter two are the solvents of choice. The most common oxidant is aqueous hydrogen peroxide, but other oxidants such as t-butyl hydroperoxide [4], sodium perborate (Table 1, Entries 18 and 22) and sodium percarbonate [4] have also been employed. It is interesting to note the effect of a change of oxidant. Using alkaline hydrogen peroxide... 

Sodium Carbonate Peroxohydraie. Known commeicially as sodium percarbonate. sodium carbonate peroxohydrate does not contain the C-O-O—C group and is not a peroxocarbonate. The stoichiometry is 2Na2C03 3H202. The material is made commercially by three processes batch crystallization, continuous crystallization, and fluid-bed reaction. 

Sodium percarbonate, Na2C206.—The percarbonate is said4 to be formed by the electrolytic oxidation of the normal carbonate, but it has not been isolated by this method. A substance of the formula 2Na2COs,3H2Oa is obtained by the interaction of 3 molecules of hydrogen peroxide in aqueous solution and 2 molecules of sodium carbonate, the product being subsequently dried in vacuo Other percarbon-ates have been described,8 but their existence is still a subject of debate. 

In contrast with sodium perborate, which is a genuine peroxo compound. Sodium percarbonate is only a perhydrate. It has the composition Na2C03 I.5H2O2. It can be manufactured using dry and wet processes. In a modern dry process, hydrogen peroxide and a sodium carbonate solution are sprayed onto a fluidized bed of sodium percarbonate which is fluidized with warm air. The lines are returned to the process and the oversized particles are ground. 

Sodium percarbonate has now to a great extent replaced sodium perborate. It is an addition compound of hydrogen peroxide and sodium carbonate, INajCOj.SHjO,. A one per cent solution has a pH of 10-5, which is very suitable for bleaching. One pound dissolved in 100 gallons of water w ould give the equivalent of a 0-5 per cent (w/w) solution of hydrogen peroxide. 

Carbonic acid, disodium salt compd. with hydrogen peroxide (2 3) Disodium carbonate, compound with hydrogen peroxide (2 3) Disodium carbonate, hydrogen peroxide (2 3) EINECS 239-707-6 FB Sodium percarbonate Oxyper, Perdox Peroxy sodium carbonate Sodium carbonate peroxide Sodium percarbonate. Bleaching agent for domestic and industrial use, denture cleaner, mild antiseptic. Chemoxal Degussa AG Interox Am. 

Peroxy sodium carbonate. See Sodium percarbonate Peroxysulfuric acid CAS 7722-86-3... 

Sodium carbonate (2 1). See Sodium carbonate Sodium carbonate peroxide (INCI) Sodium carbonate peroxohydrate Sodium carbonate peroxyhydrate. See Sodium percarbonate Sodium carbonate stabilized sulfonated polystyrene sodium salt. See Sodium polystyrene sulfonate Sodium 2-(1-carboxyethoxy)-1-methyl-2-oxoethyl octadecanoate. See Sodium stearoyl lactylate... 

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