grade
ACS reagent
form
powder
concentration
37.5-38.6% H2SO4 in NaOH (titration)
impurities
≤0.002% H2SO4, ≤0.01% insolubles, ≤2.5% water
acid number
37.5‑38.6%
density
2.512 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.002%, phosphate (PO43-): ≤0.001%
cation traces
Ca: ≤0.002%, Fe: ≤0.002%, Mg: ≤0.001%, Na: ≤0.01%, heavy metals: ≤0.001%
SMILES string
[K+].[K+].[K+].OS([O-])(=O)=O.[O-]S(=O)(=O)OS([O-])(=O)=O
InChI
1S/3K.H2O7S2.H2O4S/c;;;1-8(2,3)7-9(4,5)6;1-5(2,3)4/h;;;(H,1,2,3)(H,4,5,6);(H2,1,2,3,4)/q3*+1;;/p-3
InChI key
ZXJZSJHWYNTTSK-UHFFFAOYSA-K
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3
target_organs
Respiratory system
存储类别
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable