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Contact SupplierChemical name sodium carbonate
molecular weight 105.989
melting point 851oc 1564of
specific gravity 20o4oc 2.533
specific heat 25oc 0.249 calgmoc
77of 0.249 btulboc
45oc 0.256 calgmoc
heat of fusion 854oc 75.5 calgm
135.9 btulb
heat of formation 25oc -2550 calgm
-4590 btulb
heat of hydration monohydrate, na2co3 • h2o 30.0 calgm na2co3
54.0 btulb na2co3
heptahydrate, na2co3 • 7h2o 156.4 calgm na2co3
281.5 btulb na2co3
decahydrate, na2co3 • 10h2o 208.8 calgm na2co3
375.8 btulb na2co3
solubility 0oc 7 gms na2co3 in 100 gms h2o
100oc 44.7 gms na2co3 in 100 gms h2o
35.37oc (max.) 49.5 gms na2co3 in 100 gms h2o
alkali equivalent 100 % na2co3 = 58.48 % na2o
acid equivalent 1 lb na2co3 = 0.6881 lb hcl.