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Safety Information

04004

Sigma-Aldrich

Phosphorus, red

≥97.0%

Synonym(s):

P

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About This Item

Empirical Formula (Hill Notation):
P
CAS Number:
7723-14-0
Molecular Weight:
30.97
EC Number:
231-768-7
MDL number:
MFCD00133771
UNSPSC Code:
12141909
PubChem Substance ID:
57646724
NACRES:
NA.22

vapor density

0.02 (vs air)

Quality Level

100

vapor pressure

0.03 mmHg ( 21 °C)
1 mmHg ( 76.6 °C)

Assay

≥97.0%

autoignition temp.

500 °F

reaction suitability

reaction type: Buchwald-Hartwig Cross Coupling Reaction
reaction type: Heck Reaction
reaction type: Hiyama Coupling
reaction type: Negishi Coupling
reaction type: Sonogashira Coupling
reaction type: Stille Coupling
reaction type: Suzuki-Miyaura Coupling
reagent type: catalyst

resistivity

10 μΩ-cm, 20°C

mp

416 °C (subl.) (lit.)

density

2.34 g/mL at 25 °C (lit.)

cation traces

Fe: ≤2000 mg/kg

storage temp.

room temp

SMILES string

[P]

InChI

1S/P

InChI key

OAICVXFJPJFONN-UHFFFAOYSA-N

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General description

Red phosphorus is the most common allotrope ofphosphorus due to its relative stability compared to white phosphorus. It has a variety of uses including, but notlimited to, use as a catalyst, battery anode, flame retardant, and igniter.

Application

Red phosphorus can be used as a:
  • Photocatalyst for the formation of H2 from water.
  • Catalyst in the synthesis of tris(2-pyridyl)phosphine by reacting with 2-bromopyridine in the presence of a base.
  • Flame retardant along with aluminum oxide in recycled poly(ethylene terephthalate).
  • Anode material in combination with carbon composites for sodium-ion batteries.

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H228,H412

Hazard Classifications

Aquatic Chronic 3 - Flam. Sol. 2

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 2: Flammable solids
Red Phosphorus
Hazardous rank II

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

04004-6X250G:
04004-60KG-H:
04004-BULK:
04004-6X1KG:
04004-6X500G:
04004-500G:
04004-1KG:
04004-1.5KG:
04004-VAR:
04004-50KG:
04004-250G:

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Certificates of Analysis (COA)

Lot/Batch Number
STBL3899
STBL3898
STBL2797
STBL2796
STBL1739

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Red phosphorus: an elemental photocatalyst for hydrogen formation from water
Wang F, et al.
Applied Catalysis. B, Environmental, 111, 409-414 (2012)
New Evidence Concerning the Structure of Amorphous Red Phosphorus
Hartl H
Angewandte Chemie (International Edition in English), 34(23-24), 2637-2638 (1996)
An amorphous red phosphorus/carbon composite as a promising anode material for sodium ion batteries
Kim Y, et al.
Advanced Materials, 25(22), 3045-3049 (2013)
Expedient one-pot organometallics-free synthesis of tris (2-pyridyl) phosphine from 2-bromopyridine and elemental phosphorus
Trofimov BA, et al.
Tetrahedron Letters, 53(19), 2424-2427 (2012)
Red phosphorus/aluminium oxide compositions as flame retardants in recycled poly (ethylene terephthalate
Laoutid F, et al.
Polymer Degradation and Stability, 82(2), 357-363 (2003)
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