In the second group, we may notice the application of litmus, methyl orange or phenolphthalein in alkalimetry, when the acid or alkaline character of the solution commands the colour which it exhibits; starch paste, which forms a blue compound with free iodine in iodometry; potassium chromate, which
Methyl orange (helianthin, gold orange, Mandarin orange), (CH 3) 2 N C 6 H 4 N 2 C 6 H 4 SO 3 Na, is the sodium salt of paradimethylaminobenzene-azo-benzene sulphonic acid.
Azo dyes represent about one-half of the dyes used in the textile industry. It has been reported that about 20% of dyestuff is discharged directly into the environment by textile factories 1..查看文章
The closer these two parameters match, the more accurate the titration most times. Methyl orange ({eq}C_{14}H_{14}N_3NaO_3S {/eq}) is an acid-base indicator that has a color-change pH range..查看文章
Methyl orange is the common name for sodium 4-{4-(dimethylamino)phenyldiazenyl}benzene-1-sulfonate. The pKa of this molecule is 3.47. Therefore, a... See full answer below.
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