Melting point :350 °C (lit.)
Density :2,36 g/cm³
storage temp. :Room Temperature
solubility :5 M HCl: 0.1 M, clear, yellow
form :powder
Specific Gravity :2.36
color :White
Odor :Odorless
PH Range :9.5 - 10.5
PH :10.4(1 mM solution);10.4(10 mM solution);10.4(100 mM solution)
Water Solubility :0.9 mg/100 mL (18 ºC)
Sensitive :Air Sensitive
λmax :λ: 260 nm Amax: 0.030
λ: 280 nm Amax: 0.025 Merck :14,5670
Solubility Product Constant (Ksp) :pKsp: 11.25
Stability :Stable.
Cosmetics Ingredients Functions :ABSORBENT
BUFFERING Cosmetic Ingredient Review (CIR) :Magnesium hydroxide (1309-42-8)
InChI :1S/Mg.2H2O/h;2*1H2/q+2;;/p-2
InChIKey :VTHJTEIRLNZDEV-UHFFFAOYSA-L
SMILES :O[Mg]O
LogP :-1.380 (est)
CAS DataBase Reference :1309-42-8(CAS DataBase Reference)
NIST Chemistry Reference :Magnesium hydroxide(1309-42-8)
EPA Substance Registry System :Magnesium hydroxide (Mg(OH)2) (1309-42-8)

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.