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Silicates, borates and other salts

Sodium phosphide

Also known as Trisodium phosphide, Trisodiophosphine, Trinatrium phosphid

CAS 12058-85-4Formula Na3PMolar mass 99.94 g/molEC 235-031-0
1 supplier listed
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Sodium phosphide chemical structure, Na3P, CAS 12058-85-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Red solid
Melting point
>650 °C
Density
1.74 g/cm³
Solubility
Reacts with water
HS code
285390
Category
Silicates, borates and other salts
UN number
UN 1432
Illustrative photo, red pigment powder in an open fibre drum in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Sodium phosphide?

Plain description, key identifiers and synonyms

Sodium phosphide appears as a red solid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trisodium, phosphorus(3-)
CAS number
12058-85-4Other or deprecated CAS: 24167-76-8
EC number
235-031-0
Molecular formula
Na3P
UNII
A360RQX9W2
InChIKey
FHHBFSHDCCEUKM-UHFFFAOYSA-N
InChI
InChI=1S/3Na.P/q3*+1;-3
SMILES (canonical and isomeric)
[Na+].[Na+].[Na+].[P-3]

Synonyms

  • Trisodium phosphide
  • Trisodiophosphine
  • Trinatrium phosphid
  • Fosfuro de trisodio
  • Phosphure de sodium
  • Phosphure de trisodium
  • Trinatrium phosphid (German)
  • Phosphure de sodium (French)
  • Fosfuro de trisodio (Spanish)
  • Trisodium phosphanetriide
  • Phosphure de trisodium (French)
  • trisodium, phosphorus(3-)
  • Sodium phosphide (Na3P)
  • Sodium phosphide [UN1432] [Dangerous when wet]

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

Appearance
Red solidexp.
Melting point
>650 °Cexp.
Density
1.74 g/cm³exp.
Solubility
Reacts with waterexp.

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
99.94 g/molcalc.
Exact mass
99.9431 Dacalc.
LogP (octanol/water)
-8.13calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
4calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN 1432
Transport hazard class
4.3

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

Sodium phosphide suppliers

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Where suppliers are based

1 supplier in 1 country

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Sodium phosphide price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Used in many chemical reactions requiring a highly reactive phosphide anion, used as a catalyst ... for polymer production.

How it is made

The simplest method of production is direct combination of the elements at elevated temperature. White, red, or gaseous phosphorus can be used. Some phosphides can be prepared by reaction of phosphine with metals or their salts. Metallic phosphides can also be prepared by the electrothermal reduction of metal oxides in the presence of carbon and phosphates. (Phosphides)

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Sodium phosphide is traded under.

HS 2853.90Indicative HS code

Phosphides, whether or not chemically defined, excluding ferrophosphorus, other, other

World exports in 2024
$2.45B
−33.6% vs 2023, imports $816M
2019 to 2024
Top exporters
  1. China68.4%
  2. Israel8.1%
  3. United States4.9%
Top importers
  1. United States19.3%
  2. Japan17.9%
  3. China13.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Sodium phosphide, based on the data on this page

What is Sodium phosphide?

Sodium phosphide appears as a red solid.

What is the CAS number of Sodium phosphide?

The CAS registry number of Sodium phosphide is 12058-85-4. Other or deprecated CAS numbers: 24167-76-8.

What is the molecular formula and weight of Sodium phosphide?

The molecular formula of Sodium phosphide is Na3P and its molar mass is 99.94 g/mol.

What is Sodium phosphide used for?

Used in many chemical reactions requiring a highly reactive phosphide anion, used as a catalyst ... for polymer production.

Is Sodium phosphide hazardous?

No GHS hazard classification for Sodium phosphide is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Sodium phosphide?

Sodium phosphide is usually classified under HS code 285390 (Phosphides, whether or not chemically defined, excluding ferrophosphorus, other…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sodium phosphide?

CompoundList lists 1 supplier of Sodium phosphide in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Sodium phosphide?

Suppliers quote Sodium phosphide 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 Sodium phosphide

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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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