Nano α-FeO(OH)，Hydroxy ferric oxide，60-80nm

CAS NO.                               1332-37-2      
EINECS NO.                         215-168-2  
Color red black yellow       Style  Inorganic pigment
Usage                                    Ink/ Leather  pigment，Plastic
Nano - hydroxy iron oxide, can be used in the industrial process, the removal effect is good, can replace ZnO in certain circumstances, the cost is lower than ZnO, and the desulfurization effect is better. The general formula of FeOOH was FeOx (OH) 3-2x. hydroxy iron oxide can be converted into iron oxide under certain conditions.

The fabrication method of hydroxyl iron oxide particles, which is characterized by the process including:

1, the ferrous iron salt solution and containing selected from sodium carbonate and alkali hydroxide in 1 or 2 kinds of alkaline aqueous solution were mixed, so as to obtain a suspension containing

ferrous;

2, the suspension will be obtained in the step a) control in - 5 DEG C or more but less than 10 DEG C temperature range, and to the suspension of blowing oxygen composition ratio is 0.5 to 0.8 oxygen containing gas, so as to the suspension of the ferrous from 30 to 65% of the oxidation rate of oxidation. To obtain iron oxyhydroxide particle precursor;

3, after the process B containing the hydroxyl and iron oxide particles of the suspension control in more than 20 DEG C but less than 45 DEG C temperature range, and to the suspension in blowing oxygen containing gas, thus by the iron oxyhydroxide particle generating hydroxyl and iron oxide particles.