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Hydroxylapatite

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Identification
Molecular formula
Ca5(PO4)3OH
CAS number
12167-74-7
IUPAC name
pentacalcium;hydroxide;triphosphate
State
State

At room temperature, hydroxylapatite is a solid. It is commonly found in mineral form and is an important component of teeth and bones, contributing to their hardness and structure.

Melting point (Celsius)
1 100.00
Melting point (Kelvin)
1 373.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
502.31g/mol
Molar mass
502.3090g/mol
Density
3.1100g/cm3
Appearence

Hydroxylapatite typically appears as a white crystalline solid. It may also be seen as a powder or in large granules, depending on its form. It has a translucent to opaque quality and, in its pure form, can appear quite clear

Comment on solubility

Solubility of Pentacalcium Hydroxide Triphosphate

Pentacalcium hydroxide triphosphate, with the formula Ca5(OH)2(PO4)3, exhibits unique solubility characteristics that are important for various applications.

Solubility Characteristics:

  • Low Solubility: Pentacalcium hydroxide triphosphate is generally considered to have low solubility in water.
  • Influencing Factors: Factors such as pH and temperature can influence its solubility; an increase in pH can further decrease solubility.
  • Precipitation: In neutral to alkaline conditions, this compound tends to precipitate, limiting its dissolution.
  • Biological Relevance: The low solubility is advantageous in biological settings, making it beneficial in applications like bone regeneration, where controlled release is needed.

In summary, the solubility of pentacalcium hydroxide triphosphate demonstrates important implications for its use in materials science and biological applications. While low solubility poses challenges for dissolution in aqueous environments, it can also be levered for specific technological benefits.

Interesting facts

Pentacalcium Hydroxide Triphosphate

Pentacalcium hydroxide triphosphate, often referred to in scientific literature, is a fascinating compound that plays an important role in various applications, particularly in the fields of materials science and biochemistry. Here are some intriguing aspects of this compound:

  • Composition: This compound is composed of five calcium ions, indicating its significance in calcium-related processes.
  • Role in Biology: Calcium ions are essential for numerous biological functions, especially in bone health and cellular signaling pathways. As such, pentacalcium hydroxide triphosphate can mimic natural mineral components found in bone.
  • Industrial Applications: It is often found in fertilizers, and due to its properties, it can also serve as a soil amendment to enhance nutrient availability for plants.
  • Crystal Structure: Its unique crystal structure contributes to its stability and effectiveness in various applications. This structural integrity is crucial when considering its role in industrial processes.

"The study of calcium phosphates continues to evolve, revealing their multifaceted roles in both nature and technology."

Moreover, ongoing research is investigating its potential in drug delivery systems and biocompatible materials, showcasing the compound's versatility beyond traditional applications. Understanding pentacalcium hydroxide triphosphate not only deepens our knowledge of mineral chemistry but also paves the way for innovative solutions in medicine and agriculture.

Synonyms
Durapatite
Calcium hydroxyapatite
Radiesse
Tribasic calcium phosphate
Win 40350
Calcium hydroxylapatite
HSDB 5804
Calcium tribasic phosphate
Dekacalcium-dihydrat-hexa(phosphat)
UNII-91D9GV0Z28
91D9GV0Z28
Decacalcium hexaphosphate dihydroxide
EINECS 235-330-6
WIN-40350
CALCAREA PHOSPHORICA
CALCIUM PHOSPHATE,TRIBASIC
EC 235-330-6
CALCIUM PHOSPHATE (TRIBASIC)
HYDROXYAPATITE (MART.)
HYDROXYAPATITE [MART.]
TRIBASIC CALCIUM PHOSPHATE (II)
TRIBASIC CALCIUM PHOSPHATE [II]
TRIBASIC CALCIUM PHOSPHATE (USP-RS)
TRIBASIC CALCIUM PHOSPHATE [USP-RS]
Hydroxyapatite, Calcium
Teething Pain
Calc Phos 3X
Calc Phos 6X
Calc Phos 12X
Calc Phos 30X
Calc Phos 200X
CALCII PHOSPHAS
TONICPET 2
Calcarea Phos Kit Refill
Calcarea Phosphorica 30C
CALCAREA PHOSPHORICA 6X
CHEBI:52255
Calcarea phosphorica 3X (Tablet)
calcium phosphate tribasic
calcium phosphate, tribasic
calipharm t
caswell no. 148
ccris 3668
cerasorb
ec 231-840-8
einecs 231-840-8
epa pesticide chemical code 076401
hsdb 879
jax tcp
multifos
osferion
ostram
posture (calcium supplement)
synthograft
tricafos p
tricos
unii-k4c08xp666
HYDROXYAPATITE
Hydroxylapatite
1306-06-5
Alveograf
Periograf
Durapatite [USAN]
Calcium hydroxide phosphate
pentacalcium;hydroxide;triphosphate
MFCD00010904
Pentacalcium hydroxide tris(orthophosphate)
Ossopan
calcium hydroxide tris(phosphate)
Calcium phosphate, tribasic [NF]
Durapatite (USAN)
Apatite, hydroxy
Supertite 10
Calcium phosphate, tribasic (NF)
pentacalcium hydroxide triphosphate
Hydroxylapatite (Ca5(OH)(PO4)3)
Calcium orthophosphate, basic
EINECS 215-145-7
Pentacalcium monohydroxyorthophosphate
hydroxyl apatite
Alveograf (TN)
DURAPATITE [MI]
Hydroxyapatite Nanopowder
Hydroxyapatite Micronpowder
Hydroxylapatite, fast flow
DURAPATITE [WHO-DD]
Calcium hydroxide phosphate (Ca10(OH)2(PO4)6)
HYDROXYLAPATITE, CERAMIC
CHEMBL2218916
Calcium Orthophosphates Nanopowder
Hydroxylapatite, (Ca 35-40%)
CALCAREA PHOSPHORICA [HPUS]
CALCIUM PHOSPHATE [WHO-IP]
Hydroxylapatite nanopowder (<40 nm)
CALCII PHOSPHAS [WHO-IP LATIN]
CALCIUM PHOSPHATE,TRIBASIC [VANDF]
DA-64323
FH170751
SY066641
DB-041626
TRIBASIC CALCIUM PHOSPHATE [WHO-IP]
NS00074398
D03303
D03922
Calcium hydroxide phosphate (Ca5(OH)a(PO4)a3)
Calcium phosphate tribasic 34 to 40% Calcium basis
Q27271399
235-330-6
Calcium phosphate tribasic (III), Ultra pure, FCC, Ultrfien powder, Low heavy metals (Al: <= 5 ppm, As: <= 1 ppm, Cd: <= 1 ppm, Pb: <= 1 ppm & Hg: = 0.1 ppm)