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Phosphorus Structure

Phosphorus

Chemical Properties

Melting point 280 °C (white)(lit.)
Boiling point 280℃
Density  2.34 g/mL at 25 °C(lit.)
vapor density  0.02 (vs air)
vapor pressure  0.03 mm Hg ( 21 °C)
Flash point 30°C
storage temp.  2-8°C
solubility  insoluble
form  powder (red)
color  Red-brown
Specific Gravity 2.34
Odor Acrid fumes when exposed to air
PH 3 at 37℃ and 500-10000mg/L
Resistivity 10 μΩ-cm, 20°C
Water Solubility  insoluble
Merck  13,7433
Dielectric constant 4.1(34℃)
Exposure limits ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
Stability Stable. Highly flammable. Incompatible with strong oxidizing agents, strong bases. Light and heat sensitive.
CAS DataBase Reference 7723-14-0(CAS DataBase Reference)
NIST Chemistry Reference Phosphorus atom(7723-14-0)
EPA Substance Registry System Phosphorus (7723-14-0)

Safety Information

Hazard Codes  F,N,C,T+
Risk Statements  11-16-52/53-50-35-26/28-17
Safety Statements  7-43-61-43C-45-38-26-5-27-6
RIDADR  UN 1338 4.1/PG 3
WGK Germany  2
RTECS  TH3495000
10-21
Autoignition Temperature White phosphorus: 29 °C
Red phosphorus: 260 °C
TSCA  Yes
HazardClass  4.1
PackingGroup  III
HS Code  28047000
Hazardous Substances Data 7723-14-0(Hazardous Substances Data)
Toxicity LD50 oral (rat) 3 mg/kg
PEL (OSHA) 0.1 mg/m3
TLV-TWA (ACGIH) 0.02 ppm (0.1 mg/m3)
IDLA 5 mg/m3

MSDS

Usage And Synthesis

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