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Merck
CN

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)
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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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pictograms

Corrosion

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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Wolfgang Brockner et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 58(9), 1911-1914 (2002-08-08)
SbPO4 was synthesized via a new route by reacting antimony metal with meta-phosphoric acid, (HPO3)n at high temperatures. The Raman and IR spectra of the title compound were recorded and the vibrational modes assigned on the basis of a factor
Victor Pinheiro Feitosa et al.
Journal of dentistry, 41(11), 1068-1080 (2013-09-03)
To compare the effects of two etching procedures using meta-phosphoric (MPA) or ortho-phosphoric acid (OPA) on dentine demineralisation, resin-dentine bonds durability and interface nanoleakage/ultra-morphology. Middle-dentine specimens were etched using 37% OPA (15s) or 40% MPA (60s) and submitted to infrared
B Baghbanzadeh-Nobari et al.
Journal of animal physiology and animal nutrition, 101(5), e266-e277 (2016-11-22)
The effects of supplementing ewe diets with either DL-methionine (DL-Met) or 2-hydroxy-4 (methylthio) butanoic acid isopropyl ester (HMBi) were investigated on ruminal in situ degradability of grain and forage diets, in vivo digestibility, rumen fermentation, blood metabolites and antioxidant status. Six ruminally



Global Trade Item Number

SKUGTIN
1148238-20MG04061833848845
H46007-100G04061833795699
04103-1KG04061838629081
04103-250G04061838629098