1 name: sodium peroxide
Commonly known as: sodium percarbonate, carbon , oxygen solid .
MF : 2Na2CO3 · 3H2O2
Molecular weight: 314.02 ( according to 1991 international relative atomic mass )
Appearance: white crystal or crystalline powder. Soluble in water , the rapid release of oxygen , alkaline aqueous solution . Under exposed to heat or air humidity and the presence of impurities , easy to break lose oxygen.
Standard : HG-T2764-1996 sodium peroxide
Appearance: white crystal or crystalline powder
Uses:
Medicine can kill the hepatitis B virus , E. coli, Staphylococcus aureus and other white
Washing aspects fabric bleach , strong detergency, colorful , feel good
Preservation aspects of meat, fruit
Aquaculture and other oxygenates
Household cleaning agents tableware, tea cleaning , oil cleaning, carpet cleaning kitchen floor
Widely used in electroplating, wood preservation, water treatment , etc.
Technical indicators:
Index Name First grade Qualified
Active oxygen [O] content (%) ≥ 13 10.5
Iron content (PPm) ≤ 20 50
( 3% solution ) PH value 10-1110-11
Bulk density (g / mL) 0.040-0.95 0.040-0.95
Moisture (%) ≤ 2 2
Note:
Active oxygen content of sodium peroxide factory is guaranteed , subject to compliance with performance standards in storage and transport , within six months of active oxygen content of not more than 10% lower .
Packing:
A kind of plastic film lined woven bag , net weight 25Kg. Another double corrugated boxes and plastic bags , which the packaging with polyethylene plastic film bag , net weight , respectively 1Kg and good 0.5Kg, packaging with corrugated boxes , each box weighing 25Kg respectively and 20Kg.
Storage and transport :
During storage and transportation , and other merchandise mix is prohibited to keep the packaging intact . Sodium peroxide should . Store in a dry, ventilated warehouse.
Note:
FDA wipe the apparatus , the need to use clean dry cloth ( or rinse with water ) .
This product is suitable for washing , wiping wool clothing.
This product is placed in the bag after the demolition of a dry, ventilated place.
Storing when the ambient temperature is not higher than 40 ℃.
2 Applications
Sodium carbonate can be used for the production of H2O2, hydrogen peroxide (H2O2) Common name of hydrogen peroxide ,
The following is a colorless liquid at room temperature , it is difficult to ionize decomposition. As a classical chemical products, industrial than 100 years ago began production . With the growth of social needs , particularly the need for ecological and environmental protection , hydrogen peroxide recent years by people of all ages , and is known as the ” green oxidant .” In order to store , transport, easy to use, industrial use alcohol to precipitate a solid which was converted to the sodium percarbonate crystals ( chemical formula : 2Na2CO3 · 3H2O2), the crystal has the duality of Na2CO3 and H2O2 . Generating an alcohol precipitation process is as follows : when 0 ~ 5 ℃, to a saturated solution of Na2CO3 , and a stabilizer added first H2O2 (MgCl2 and Na2SiO3), the reaction sufficiently , and then isopropanol was added , filtered liquid separation , i.e., too carbonate crystals. After treatment available oxygen capsules , tablets that solid oxygen , oxygen in ponds for stereo , water purification . Multifunctional detergent , ie washing decontamination , while both bleaching, sterilization , disinfection and other effects, has become the development trend of detergent , plus there are a lot of foreign detergent component bleaching effect , the country will also gradually to develop in this area . Since percarbonate tasteless , non-toxic, easy to dissolve in cold water , strong detergency, when dissolved in water can release oxygen bleach sterilization and play a variety of effects, in line with the development trend of modern detergents . More than traditional powdered detergent used sodium borate , sodium borate, but the presence of dissolved slow, expensive and boron impact on crops and other shortcomings . And sodium carbonate , sodium perborate lower than the cost , good solubility , suitable for use in cold areas and winter , crops will not cause harm , and therefore the production of sodium carbonate in detergent applications increasing, at present, has been widely percarbonate used for household and industrial washing , bleaching , bactericides, for synthetic fibers, animal fibers , synthetic resin fibers , pulp production areas such as fat , good bleaching effect , no damage to the fabric , non-yellowing .
3 reaction equation
2Na2CO3 · 3H2O2 = 2Na2CO3 +3 H2O2
Na2CO4 + H2O = Na2CO3 + H2O2
2H2O2 = 2H2O + O2 ↑
After water was added sodium carbonate peroxide , rapidly produce hydrogen peroxide, hydrogen peroxide is unstable , produce oxygen and water. The final reaction of sodium carbonate , dry white powder or as granules, odorless , is an alkaline salt thereof. Commonly known as soda , eating the human body without harm, does not produce lead, arsenic and other heavy metals.