Table 2: H2SO4
mediated Bromination of Methylketones
From XRD results, it is also deduced that at higher concentrations of H2SO4
, Zn has highest selectivity in comparison toother metals.
Therefore, 5 mL of 2 M H2SO4
can recover the As(V) ions from the banana peel surface.
1] of dry bagasse), showing a interaction between the independent variables, temperature and H2SO4
Preparation of Immobilized H2SO4
on Activated Charcoal
60 g of raw material was weight and impregnated in 600 ml 10% H2SO4
(v/v) and 10% ZnCl2 (w/v), respectively for 24 hour with continuous stirring.
Catalyst loading was kept constant at 12v/v% H2SO4
To it, 10 mL of concentrated HNO3 and 2 mL of concentrated H2SO4
were carefully added.
0 g of oven dried plant material, 30 ml of concentrated H2SO4
and 5 g digestion mixture [K2SO4; CuSO4; FeSO4 (100g; 10g; 5g)] was mixed, digested on the gas heater in Kjeldhal digestion flask, cooled and made up the volume to 100 ml.
Naoh, of 48 to 50 % concentration, (c) hydrochloric acid, HCL, of 30 to 32 % concentration, also (d) sulfuric acid, H2SO4
, of 98 % concentration.
Supply of different chemicals including (a) chlorine gas, CL2, of 99 % purity, (b) sodium hydroxide. Naoh, of 48 to 50 % concentration, (c) hydrochloric acid, HCL, of 30 to 32 % concentration, also (d) sulfuric acid, H2SO4, of 98 % concentration
HCl has proved to be the most corrosive among the common acids, excluding HF, while H2SO4
and HNO3 have little action on most glasses.
After the precipitate settled, 100 ml clear supernatant was separated in fresh bottle, to which 2 ml H2SO4
was added, mixed well and immediately titrated with 0.
Airvac systems are sealed, so there is no H2SO4
, inflow, infiltration or exfiltration.
Ultra-trace analysis of elements that suffer interferences in high-purity samples (Ge and As in HCl; V and Ti in H2SO4
, and more).
The residue was reacted with H2SO4
to increase sodium chromate recovery.