Water Temperature: 45 DegreesMany crappies have started migrating toward their eventual spawning areas. Target crappie hanging tight to submerged wood on deep channel banks, about a quarter of the way into the creek arm, 10 to 20 feet deep.
The hemihydrate (CaSO 4 Â·~0.5H 2 O or (CaSO 4) 2 Â·H 2 O) is better known as plaster of Paris, while the dihydrate (CaSO 4 Â·2H 2 O) occurs naturally as gypsum.he anhydrous form occurs naturally as Î²-anhydrite. Depending on the method of calcination of calcium sulfate dihydrate, specific hemihydrates are sometimes distinguished: alpha-hemihydrate and beta-hemihydrate.
The hemihydrate (half a mole of water bound in the crystal structure of a mole of calcium sulfate) has solubility of only .24g per 100mL water (at 20 degrees C) -- this is quite poor solubility.The dihydrate has somewhat better solubility in water I believe, but still relatively low.he hemihydrate (half a mole of water bound in the crystal structure of a mole of calcium sulfate) has solubility of only .24g per 100mL water (at 20 degrees C) -- this is quite poor solubility. The dihydrate has somewhat better solubility in water I believe, but still relatively low.