Question

Which type of alumina, “acidic” or “basic,” would provide for the better separation of acids?

Underline the media that are appropriate for extinguishing fires involving fluorene or 9-fluorenone:

Water. Carbon dioxide. Chemical powder. Foam

Is fluorene a carcinogen? a mutagen?

Is 9-fluorenone a mutagen?

Answer 1

[1] The best type of alumina for separation of acids are Acidic Alumina.

Alumina is somewhat basic [slightly], so will hold acidic mixes all the more unequivocally. It is useful for separation of segments that are feebly or modestly polar and the purging of amines. Absorbent molecule size influences how dissolvable moves through the segment. Silica or alumina are both accessible in an assortment of sizes.

Acidic alumina

1. Adjusted to a pH of 4.5±0.5    

2. Used to separate phenols, sulphonic, carboxylic and amino acids

Basic alumina

1. Adjusted to pH of 10.0±0.5      

2. Used to separate amines, imines, and basic dyes

[2] The media that are appropriate for extinguishing fires involving fluorene or 9-fluorenone – Chemical Powder.

General Information - As in any flame, wear an independent breathing contraption in weight request, MSHA/NIOSH [affirmed or identical], and full defensive apparatus. During a flame, aggravating and profoundly lethal gases might be produced by warm deterioration or burning.

Quenching Media - Use operator most fitting to douse the fire. Use water splash, dry compound, carbon dioxide, or proper foam.

[3] Fluorene is a carcinogen

Fluorene frames little, white, crystalline plates; it is fluorescent when tainted. Subordinates of fluorene show action as herbicides and development controllers. It is utilized as a synthetic intermediate. Fluorene happens universally in results of inadequate burning; it likewise happens in petroleum derivatives.

As per the KEGG, it is a group three [3] - carcinogen-causing agent [not classifiable as to its carcinogen -causing nature to people]. Different names for benzo[c]fluorene are 3,4-benzofluorene, 7H-benzo[c]fluorene, and NSC 89264.

[4] 9-Fluorenone is the least complex individual from the class 9-Fluorenone that is 9H-fluorene bearing at position 9 an oxo substituent. It has a job as a contagious [fungal] xenobiotic metabolite. 9-Fluorenone is a mutagen.