Wikipedia
Search Wikipedia:

Latest topics
» How do leavening agents make dough rise?
Thu May 11, 2017 2:42 am by bejoy

» Solvent effects on chemical reaction
Thu May 11, 2017 2:41 am by bejoy

» How does salt lower the freezing point of water?
Thu May 11, 2017 2:16 am by bejoy

» Benedict’s reagent test for Monosaccharides
Thu May 11, 2017 2:06 am by bejoy

» Industrial Production of Diethyl Ether
Thu May 11, 2017 2:04 am by bejoy

» How to prepare sodium acetate at home?
Thu May 11, 2017 1:59 am by bejoy

» Production of ethyl acetate by esterification
Tue Jan 10, 2017 5:06 am by bejoy

» Toluene biodegration using jet loop reactor
Mon Jan 09, 2017 6:41 am by bejoy

» Making of ammonia by Haber’s process
Mon Jan 09, 2017 6:15 am by bejoy

June 2017
MonTueWedThuFriSatSun
   1234
567891011
12131415161718
19202122232425
2627282930  

Calendar Calendar

Free Hit Counter

Coated Sodium percarbonate

View previous topic View next topic Go down

Coated Sodium percarbonate

Post  dorachen on Wed Jun 29, 2011 1:26 am


Coated Sodium percarbonate is the more commonly commercialized peroxide compared with the uncoated type. But the uncoated product is still the preferred ingredient for simply mixing with enough quantity of soda ash and some surfactants to form the popular oxygen bleaches.
The name "Sodium percarbonate " (SPC) does not reflect the structure of this oxidizing agent, which is in fact a carbonate perhydrate: 2 Na2CO3• 3 H2O2. Although SPC is very storage-stable if dry, the solid material has a slight vapour pressure of hydrogen peroxide leading to exchange with water or to violent reactions with oxidizable substrates, even in the solid state.

The present invention relates to coated Sodium percarbonate particles consisting of a core of sodium percarbonate produced in the aqueous phase by crystallization and a firmly adhering, two-layer coating surrounding the core. The Sodium percarbonate particles coated according to the invention by means of a fluidized bed spray process are distinguished by high active oxygen stability in detergents and also by high abrasion resistance and good silo storage properties. The invention further relates to the use of the coated Sodium percarbonate particles in detergents, cleaning agents and bleaches.

dorachen

Posts : 1
Join date : 2011-06-27

View user profile

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum