diff --git a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjDeliver/DaCangFactory.cs b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjDeliver/DaCangFactory.cs
index f519be8..aa218d1 100644
--- a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjDeliver/DaCangFactory.cs
+++ b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/LjDeliver/DaCangFactory.cs
@@ -34,7 +34,7 @@ namespace Mesnac.Action.ChemicalWeighing.LjDeliver
                     new DaCangValue()
                     {
                         volume = 300,
-                        Density = 0.3f
+                        Density = 0.166f
                     }
                 },
                 {