i. physical properties
industrial synthetic hydrochloric acid is a colorless or light yellow transparent liquid.
ii. quality index
|
item
|
index by grade
|
|
superior
|
first class
|
qualified
|
|
mass fraction of total acidity (hcl) ≥
|
31.0
|
|
mass fraction of iron (fe) ≤
|
0.002
|
0.008
|
0.01
|
|
mass fraction of sulfate (so42-) ≤
|
0.005
|
0.03
|
—
|
|
mass fraction of iron of arsenic, % ≤
|
0.0001
|
|
mass fraction of ignition residue ≤
|
0.05
|
0.10
|
0.15
|
|
mass fraction of free chlorine (cl) ≥
|
0.004
|
0.008
|
0.01
|
|
mass fraction of ignition residue ≤
|
0.05
|
0.10
|
0.15
|
|
note: arsenic index is needed
|
iii. uses
include tanning, dyeing, foodstuff, pharmaceuticals, chemicals, metallurgical, and other industries.
iv. packaging
tankers or storage tanks made specifically for industrial synthetic hydrochloric acid with a sealed cover are needed for packaging. outer packaging should contain clearly visible product information and a mark that indicates it is "corrosive".
v. storage and transport
tank train cars and tank trucks can be used for transporting the products, and collisions, leakage, or mixing with alkalis are to be avoided no matter what.