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Tetraphosphorus (Yellow Phosphorus)

Tetraphosphorus (Yellow Phosphorus)

CAS Number: 12185-10-3

Molecular Formula: P4

Phosphorus Oxides precursorP2O5 synthesisElemental Phosphorus Acid productionElectronic grade Yellow PhosphorusLFP battery phosphorus supplierP4 for metallurgyHigh-purity elemental non-metalsPyrophoric element distributionWhite Phosphorus P4Primary Phosphorus FeedstockPhosphorus Trichloride Precursor

About Tetraphosphorus (Yellow Phosphorus)

Yellow Phosphorus (P4) stands as the foundational "Mother Element" in the Elemental Derivatives hierarchy, serving as the essential precursor for the entire Phosphorus Oxides & Acids value chain. Characterised by its waxy, translucent appearance and extreme pyrophoric reactivity, this high-energy element is the startin...

Tetraphosphorus (Yellow Phosphorus) Specifications

CAS Number
12185-10-3
Molecular Formula
P4
Molecular Weight
123.8950480 g/mol
IUPAC Name
1,2,3,4-tetraphosphatricyclo[1.1.0.02,4]butane
Canonical SMILES
P12P3P1P23
InChI Key
OBSZRRSYVTXPNB-UHFFFAOYSA-N
InChI
1S/P4/c1-2-3(1)4(1)2
HSN No
28047020
Molecular Weight
123.8950480 g/mol
Appearance
Waxy, yellow-to-white translucent solid
Ignition Point
30°C (86°F) (Pyrophoric)
Key Impurities
Arsenic < 2 ppm, Iron < 5 ppm (Electronic Grade)
GHS Hazard Statements
H250: Catches fire spontaneously if exposed to air H300: Fatal if swallowed H314: Causes severe skin burns and eye damage H330: Fatal if inhaled H400: Very toxic to aquatic life
Precautionary Statement Codes
P210, P222, P231, P233, P260, P264, P270, P271, P273, P280, P284, P301+P316, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P320, P321, P330, P363, P370+P378, P391, P403+P233, P405, and P501

Phosphoric Acid Production

High-purity thermal phosphoric acid is produced by burning yellow phosphorus, which is then used in food additives and electronics

LFP Battery Feedstock

key upstream material for Iron Phosphate used in Lithium Iron Phosphate (LFP) battery cathodes. Utilized to create the phosphate matrix in Lithium-Iron-Phosphate (LFP) batteries, driving the EV revolution

Agrochemicals

Used to manufacture Glyphosate (via Phosphorus Trichloride, (PCl3) and various organophosphorus pesticides

Industrial Chemicals

Precursor for Phosphorus Pentasulfide (P2S5) used in lubricant additives and Red Phosphorus used in flame retardants

Agrochemical Core

Serving as the raw material for "Halogenated Precursors" and "Specialty & Advanced Intermediates" (from your CSV), it is indispensable for systemic herbicide and pesticide synthesis

Metallurgical Alloying

In the "Metal Elements & Bulk Alloys" division, it acts as a vital additive for Phosphor Bronze and specialized steel, enhancing tensile strength and corrosion resistance

Detail 1

Pyrophoric (spontaneously ignites in air at approx. 34°C)

Detail 2

Must always be submerged in demineralized water or an inert Nitrogen blanket to prevent spontaneous combustion

Detail 3

UN 1381 Class 4.2, Shipped in specialized ISO tanks or steel drums with internal linings to prevent corrosion

Detail 4

"Closed-Loop" systems are mandatory. Avoid any contact with air. In case of fire, use large quantities of water or sand (never use CO2 or Halon)

Tetraphosphorus (Yellow Phosphorus) FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

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TSCA status*

US SDS / HazCom*

GHS classification*

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DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

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