grade
ACS reagent
vapor density
3.4 (vs air)
vapor pressure
2.2 mmHg ( 20 °C), 5 mmHg ( 25 °C)
concentration
≥85% H3PO4
impurities
Reducing substances, passes test, ≤0.001% Volatile acids (as CH3COOH), ≤0.005% Insoluble matter, calcium, magnesium, and ammonium hydroxide precipitate
color
APHA: ≤10
bp
158 °C (lit.)
mp
~40 °C (lit.)
density
1.68 g/mL at 25 °C (lit.), 1.685 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤3 ppm, nitrate (NO3-): ≤5 ppm, sulfate (SO42-): ≤0.003%
cation traces
As: ≤1 ppm, Fe: ≤0.003%, K: ≤0.005%, Mn: ≤0.5 ppm, Na: ≤0.025%, Sb: ≤0.002%, heavy metals (as Pb): ≤0.001%
SMILES string
OP(O)(O)=O
InChI
1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key
NBIIXXVUZAFLBC-UHFFFAOYSA-N
Other Notes
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
存储类别
8A - Combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter