Input interpretation
red phosphorus
Chemical names and formulas
formula | P name | red phosphorus IUPAC name | phosphorus alternate names | amorphous phosphorus | phosphorus red | red amorphous phosphorus mass fractions | P (phosphorus) 100%
Structure diagram
Structure diagram
Basic properties
molar mass | 30.973761998 g/mol phase | solid (at STP) melting point | 579.2 °C density | 2.16 g/cm^3 solubility in water | insoluble
Units
Solid properties (at STP)
density | 2.16 g/cm^3 vapor pressure | 0.02999 mmHg (at 21 °C)
Units
Thermodynamic properties
specific heat capacity c_p | solid | 0.6845 J/(g K) molar heat capacity c_p | solid | 21.2 J/(mol K) specific heat of formation Δ_fH° | solid | -0.5682 kJ/g molar heat of formation Δ_fH° | solid | -17.6 kJ/mol specific entropy S° | solid | 0.7361 J/(g K) molar entropy S° | solid | 22.8 J/(mol K) molar heat of fusion | 18.54 kJ/mol | specific heat of fusion | 0.5986 kJ/g | (at STP)
Chemical identifiers
![CAS number | 7723-14-0 PubChem CID number | 5462309 PubChem SID number | 50725881 SMILES identifier | [P] InChI identifier | InChI=1/P RTECS number | TH3495000 MDL number | MFCD00133771](../image_source/0b6d87e0c456e65dc41d2841f2c69c28.png)
CAS number | 7723-14-0 PubChem CID number | 5462309 PubChem SID number | 50725881 SMILES identifier | [P] InChI identifier | InChI=1/P RTECS number | TH3495000 MDL number | MFCD00133771
NFPA label
NFPA label
NFPA health rating | 0 NFPA fire rating | 0 NFPA reactivity rating | 2
Safety properties
autoignition point | 260 °C
DOT hazard class | 4.1 DOT numbers | 1338
Toxicity properties
RTECS classes | agricultural chemical and pesticide | reproductive effector | human data