-
Ca2+
combined with
PO43−,H2
PO4− , and/or HPO
42−:
Monocalcium phosphate, E341 (CAS# 7758-23-8 for anhydrous; CAS#10031-30-8 for monohydrate:
Ca(H2
PO4)2...
-
sulfuric acid.
Ca 5 (
PO 4 )
3 OH + 5 H 2 SO 4 ⟶
3 H
3 PO 4 + 5
CaSO 4 ↓ + H 2 O {\displaystyle {\ce {
Ca5(
PO4)
3OH + 5H2SO4 ->
3H
3PO4 + 5
CaSO4v + H2O}}}...
-
dihydrate as a solid. At 60 °C the
anhydrous form is precipitated: H
3PO4 +
Ca(OH)2 →
CaHPO4 To
prevent degradation that
would form hydroxyapatite, sodium...
- basic: HPO
42− + H2O ⇌ H2
PO4− + OH− It can be
generated by
neutralization of
phosphoric acid with
sodium hydroxide: H
3PO4 + 2 NaOH → HNa2
PO4 + 2 H2O Industrially...
-
important minerals of
calcium are
gypsum (
CaSO4·2H2O),
anhydrite (
CaSO4),
fluorite (
CaF2), and
apatite ([
Ca5(
PO4)
3F]). The
major producers of
calcium are...
- used, but
generally the
formula for bone ash is:
Ca5(OH)(
PO4)
3. Bone ash
usually has a
density around 3.10 g/mL and a
melting point of 1670 °C (3038 °F)...
-
Calcium carbonate is a
chemical compound with the
formula CaCO
3. It is a
common substance found in
rocks as the
minerals calcite and
aragonite (most notably...
-
occurring mineral form of
calcium apatite with the
formula Ca5(
PO4)
3(OH), but it is
usually written Ca10(
PO4)6(OH)2 to
denote that the
crystal unit cell comprises...
- F−, ions are
present in saliva, fluorapatite,
Ca5(
PO4)
3F, also forms.
Ca5(
PO4)
3+(aq) + F−(aq) →
Ca5(
PO4)
3F(s)
Fluorapatite resists attacks by
acids better...
- Na2
Po has the
antifluorite structure, the
polonides of
Ca, Ba, Hg, Pb and
lanthanides form a NaCl lattice, Be
Po and Cd
Po have the
wurtzite and Mg
Po the...