Melting point :162-163 C
alpha :D20 +55±2° (c = 0.8 in water)
refractive index :61 ° (C=1, H2O)
storage temp. :Keep in dark place,Inert atmosphere,2-8°C
solubility :H₂O: aqueous solutions of pH 4.3-6.2 are stable up to 3 weeks at 2-8 °C.soluble
form :powder
color :white to yellow
PH :pH(100g/l, 25℃) : 4.5～6.5
Water Solubility :Soluble in water.
Merck :14,1933
BRN :5711411
Stability :Stable. Incompatible with strong oxidizing agents.

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 Wear respiratory protection. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P333+P313 IF SKIN irritation or rash occurs: Get medical advice/attention. P342+P311 IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.