This product may be stored at room temperature.
239275
meta-Phosphoric acid
ACS reagent, chips, 33.5-36.5%
Synonym(s):
Metaphosphoric acid
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5 G
$63.10
100 G
$169.00
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$587.00
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$2,270.00
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5 G
$63.10
100 G
$169.00
500 G
$587.00
2.5 KG
$2,270.00
About This Item
Linear Formula:
(HPO3)n
CAS Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21
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$63.10
In StockDetails
New
Shipping Frequency
grade
ACS reagent
Quality Level
form
chips
contains
57.0-63.0% sodium phosphite as stabilizer
concentration
33.5-36.5%
density
2 g/cm3
anion traces
MnO4- reducers: ≤0.02%
chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.001%
sulfate (SO42-): ≤0.005%
cation traces
As: ≤1 ppm
Fe: ≤0.005%
heavy metals: ≤0.005% (by ICP)
SMILES string
OP(=O)=O
InChI
1S/HO3P/c1-4(2)3/h(H,1,2,3)
InChI key
UEZVMMHDMIWARA-UHFFFAOYSA-N
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This Item | 79613 | 79615 | M6288 |
|---|---|---|---|
| grade ACS reagent | grade ACS reagent, puriss. p.a. | grade - | grade - |
| concentration 33.5-36.5% | concentration ≥33.5% (T) | concentration ~65% (HPO3) | concentration ≥33.5% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form chips | form crystalline | form pieces | form powder or crystals |
| anion traces MnO4- reducers: ≤0.02%, nitrate (NO3-): ≤0.001%, chloride (Cl-): ≤0.001%, sulfate (SO42-): ≤0.005% | anion traces chloride (Cl-): ≤10 mg/kg, nitrate (NO3-): ≤5 mg/kg, sulfate (SO42-): ≤20 mg/kg | anion traces - | anion traces chloride (Cl-): <0.001%, sulfate (SO42-): <0.005% |
| density 2 g/cm3 | density 2 g/cm3 | density 2 g/cm3 | density 2 g/cm3 |
General description
meta-Phosphoric acid is a polymer form of phosphoric acid. It is used as a catalyst as well as a reactant in chemical synthesis.
Application
meta-Phosphoric acid can be used as:
- A catalyst in combination with InCl3 to synthesize 1,8-dioxooctahydroxanthene derivatives by the reaction of cyclic β-diketones and aldehydes.
- A phosphate precursor to synthesize antimony phosphate (SbPO4) by reacting with antimony metal at high temperatures.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1
Storage Class
8B - Non-combustible corrosive hazardous materials
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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