04103
meta-Phosphoric acid
100%, lumps (glassy)
Synonym(s):
Metaphosphoric acid
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About This Item
Linear Formula:
(HPO3)n
PubChem Substance ID:
UNSPSC Code:
12352106
NACRES:
NA.21
EC Number:
253-433-4
MDL number:
Form:
lumps (glassy)
form
lumps (glassy)
composition
(HPO3)n, 40-50% , (NaPO3)n, 50-60%
impurities
≤0.001% heavy metals (as Pb)
anion traces
chloride (Cl-): ≤20 mg/kg
cation traces
As: ≤5 mg/kg, Fe: ≤100 mg/kg
SMILES string
OP(=O)=O
InChI
1S/HO3P/c1-4(2)3/h(H,1,2,3)
InChI key
UEZVMMHDMIWARA-UHFFFAOYSA-N
Application
meta-Phosphoric acid can be used as a dehydrating agent in chemical synthesis.
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B
Storage Class
8B - Non-combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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