diff --git a/powder.h b/powder.h
index 5b2f7c43f..44fc20d1a 100644
--- a/powder.h
+++ b/powder.h
@@ -279,7 +279,7 @@ static part_state pstates[PT_NUM] =
     /* CNCT */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1123.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* DSTW */ {ST_LIQUID,	PT_ICEI, 273.0f,	PT_NONE, 0.0f,		PT_WTRV, 373.0f,	PT_NONE, 0.0f},
     /* SALT */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1173.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
-    /* SLTW */ {ST_LIQUID,	PT_ICEI, 233.0f,	PT_NONE, 0.0f,		PT_WTRV, 483.0f,	PT_NONE, 0.0f},
+    /* SLTW */ {ST_LIQUID,	PT_ICEI, 233.0f,	PT_NONE, 0.0f,		PT_WTRV, 383.0f,	PT_NONE, 0.0f},
     /* DMND */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* BMTL */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1273.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* BRMT */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1273.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
@@ -289,7 +289,7 @@ static part_state pstates[PT_NUM] =
     /* MWAX */ {ST_LIQUID,	PT_WAX, 318.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_FIRE, 673.0f},
     /* PSCN */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1687.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* NSCN */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1687.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
-    /* LNTG */ {ST_SOLID,	PT_NICE, 75.0f,	    PT_NONE, 0.0f,		PT_NONE, 78.0f,	    PT_NONE, 0.0f},
+    /* LNTG */ {ST_SOLID,	PT_NICE, 63.0f,	    PT_NONE, 0.0f,		PT_NONE, 77.2f,	    PT_NONE, 0.0f},
     /* FOAM */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* BHOL */ {ST_NONE,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* WHOL */ {ST_NONE,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
@@ -303,7 +303,7 @@ static part_state pstates[PT_NUM] =
     /* THDR */ {ST_NONE,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* PLSM */ {ST_NONE,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* ETRD */ {ST_NONE,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
-    /* NICE */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LNTG, 77.0f,	    PT_NONE, 0.0f,		PT_NONE, 0.0f},
+    /* NICE */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LNTG, 64.0f,	    PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* NBLE */ {ST_GAS,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* BTRY */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_PLSM, 2273.0f},
     /* LCRY */ {ST_SOLID,	PT_NONE, 0.0f,		PT_BGLA, 1273.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
@@ -312,8 +312,8 @@ static part_state pstates[PT_NUM] =
     /* SMKE */ {ST_SOLID,	PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f,		PT_NONE, 0.0f},
     /* DESL */ {ST_LIQUID,  PT_NONE, 0.0f,      PT_NONE, 0.0f,      PT_NONE, 0.0f,      PT_FIRE, 335.0f},
     /* COAL */ {ST_SOLID,   PT_NONE, 0.0f,      PT_NONE, 0.0f,      PT_NONE, 0.0f,      PT_FIRE, 873.0f},
-    /* LO2  */ {ST_LIQUID,  PT_NONE, 0.0f,      PT_NONE, 0.0f,      PT_O2,   53.0f,   PT_NONE, 0.0f},
-    /* O2   */ {ST_GAS,     PT_NONE, 0.0f,      PT_LO2,  50.0f,     PT_NONE, 0.0f,      PT_NONE, 0.0f},
+    /* LO2  */ {ST_LIQUID,  PT_NONE, 0.0f,      PT_NONE, 0.0f,      PT_O2,   93.0f,   PT_NONE, 0.0f},
+    /* O2   */ {ST_GAS,     PT_NONE, 0.0f,      PT_LO2,  83.0f,     PT_NONE, 0.0f,      PT_NONE, 0.0f},
 	/* INWR */ {ST_SOLID,	PT_NONE, 0.0f,		PT_LAVA, 1687.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
 	/* YEST */ {ST_SOLID,	PT_NONE, 0.0f,		PT_DYST, 333.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},
 	/* DYST */ {ST_SOLID,	PT_NONE, 0.0f,		PT_DUST, 473.0f,	PT_NONE, 0.0f,		PT_NONE, 0.0f},