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Phosphates and phosphorus salts

Magnesium diphosphate (Mg2P2O7)

Also known as magnesium pyrophosphate, Diphosphoric acid, magnesium salt (1:2), Mg pyrophosphate

CAS 13446-24-7Formula Mg2O7P2Molar mass 222.55 g/molEC 236-595-0
GHS signal word: Warning. Pictograms: Harmful or irritant 1 supplier listed
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Magnesium diphosphate (Mg2P2O7) chemical structure, Mg2O7P2, CAS 13446-24-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
13446-24-7
Formula
Mg2O7P2
Molar mass
222.55 g/mol
EC number
236-595-0
HS code
283539
Category
Phosphates and phosphorus salts

What is Magnesium diphosphate (Mg2P2O7)?

Plain description, key identifiers and synonyms

Magnesium diphosphate (Mg2P2O7) is a chemical substance with the molecular formula Mg2O7P2 and a molar mass of 222.55 g/mol. Its CAS registry number is 13446-24-7. The IUPAC name is dimagnesium, phosphonato phosphate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dimagnesium, phosphonato phosphate
CAS number
13446-24-7 CAS number cross-checked
EC number
236-595-0
Molecular formula
Mg2O7P2
UNII
AL34Y660JV
MDL number
MFCD00049482
InChIKey
XZTWHWHGBBCSMX-UHFFFAOYSA-J
InChI
InChI=1S/2Mg.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4
SMILES (canonical and isomeric)
[O-]P(=O)([O-])OP(=O)([O-])[O-].[Mg+2].[Mg+2]

Synonyms

  • magnesium pyrophosphate
  • Diphosphoric acid, magnesium salt (1:2)
  • Mg pyrophosphate
  • dimagnesium diphosphate
  • dimagnesium, phosphonato phosphate
  • Diphosphoric acid magnesium salt (1:2)
  • Pyrophosphoric acid, magnesium salt (1:2)
  • Mg2O7P2
  • Magnesium diphosphate
  • Dimagnesium pyrophosphate
  • Magnesium phosphate (mg2p2o7)
  • Magnesium pyrophosphate (mg2p2o7)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
222.55 g/molcalc.
Exact mass
221.882 Dacalc.
LogP (octanol/water)
-4.1calc.
Topological polar surface area
135.6 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
2calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H335May cause respiratory irritation.
Precautionary statements (13)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Magnesium diphosphate (Mg2P2O7) suppliers

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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

1 supplier in 1 country

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Magnesium diphosphate (Mg2P2O7) price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Magnesium diphosphate (Mg2P2O7) is traded under.

HS 2835.39Indicative HS code

Polyphosphates, other

World exports in 2024
$983M
+0.1% vs 2023, imports $980M
2019 to 2024
Top exporters
  1. China35.2%
  2. Germany19.2%
  3. United States9.7%
Top importers
  1. United States10.2%
  2. United Kingdom6.1%
  3. France * partner reported4.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Magnesium diphosphate (Mg2P2O7) is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Magnesium diphosphate (Mg2P2O7), based on the data on this page

What is Magnesium diphosphate (Mg2P2O7)?

Magnesium diphosphate (Mg2P2O7) is a chemical substance with the molecular formula Mg2O7P2 and a molar mass of 222.55 g/mol. Its CAS registry number is 13446-24-7. The IUPAC name is dimagnesium, phosphonato phosphate.

What is the CAS number of Magnesium diphosphate (Mg2P2O7)?

The CAS registry number of Magnesium diphosphate (Mg2P2O7) is 13446-24-7.

What is the molecular formula and weight of Magnesium diphosphate (Mg2P2O7)?

The molecular formula of Magnesium diphosphate (Mg2P2O7) is Mg2O7P2 and its molar mass is 222.55 g/mol.

Is Magnesium diphosphate (Mg2P2O7) hazardous?

Magnesium diphosphate (Mg2P2O7) carries the GHS signal word "Warning". Main hazards: causes skin irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Magnesium diphosphate (Mg2P2O7)?

Magnesium diphosphate (Mg2P2O7) is usually classified under HS code 283539 (Polyphosphates, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Magnesium diphosphate (Mg2P2O7)?

CompoundList lists 1 supplier of Magnesium diphosphate (Mg2P2O7) in Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Magnesium diphosphate (Mg2P2O7)?

Suppliers quote Magnesium diphosphate (Mg2P2O7) on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Magnesium diphosphate (Mg2P2O7)

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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