Melting point :243-245 °C
Density :1.064 g/mL at 20 °C
bulk density :880kg/m3
vapor density :4.9 (vs air)
vapor pressure :0Pa at 20℃
FEMA :2398 | DISODIUM PHOSPHATE
storage temp. :Store at +5°C to +30°C.
solubility :H₂O: 0.5 M at 20 °C, clear, colorless
form :powder
color :White
PH :8.9-9.2 (25℃, 50g/L in water)
pka :(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
Odor :odorless
biological source :synthetic
Water Solubility :>=10 g/100 mL at 20 ºC
Specific Heat Capacity :Cp(crystal): 0.95 J/(g·K), at 25℃
Sensitive :Hygroscopic
λmax :λ: 260 nm Amax: 0.019
λ: 280 nm Amax: 0.016 Merck :14,8659
Stability :Stable. Incompatible with strong acids. Hygroscopic.
Major Application :PFAS testing
Cosmetics Ingredients Functions :FRAGRANCE
ANTICORROSIVE
BUFFERING Cosmetic Ingredient Review (CIR) :Sodium Phosphate, Dibasic (7558-79-4)
InChI :1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChIKey :BNIILDVGGAEEIG-UHFFFAOYSA-L
SMILES :[Na+].[Na+].[H]OP([O-])([O-])=O
LogP :-2.15
CAS DataBase Reference :7558-79-4(CAS DataBase Reference)
EPA Substance Registry System :Disodium phosphate (7558-79-4)
Absorption :≤0.01 at 260nm
≤0.01 at 280nm

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.