Hipoclorit de calciu

Hipoclorit de calciu
Identificare
SMILES
Număr CAS7778-54-3
ChEMBLCHEMBL2251447
PubChem CID11137272 24504, 11137272
Formulă chimicăCaCl₂O₂[1]  Modificați la Wikidata
Masă molară141,89 u.a.m.[1]  Modificați la Wikidata
Proprietăți
Densitate2,35 g/cm³  Modificați la Wikidata
Sunt folosite unitățile SI și condițiile de temperatură și presiune normale dacă nu s-a specificat altfel.
Modifică date / text Consultați documentația formatului

Hipocloritul de calciu (cu denumirile alternative de clorură de var sau var cloros) este un compus anorganic cu formula Ca(ClO)2, fiind sarea calciului cu acidul hipocloros. Este utilizat pentru tratamentul apelor și în înălbitori.[2]

Obținere

Hipocloritul de calciu este obținut la nivel industrial în urma tratării varului (Ca(OH)2) cu clor gazos. Reacția poate fi oprită în diferite etape, obținându-se concentrații diferite de hipoclorit de calciu, împreună cu var nereacționat și clorură de calciu. Ecuația reacției chimice este:[2]

2 Cl
2 + 2 Ca(OH)
2 → Ca(OCl)
2 + CaCl
2 + 2 H
2O

Proprietăți

Vezi și

Referințe

  1. ^ a b c „Hipoclorit de calciu”, CALCIUM HYPOCHLORITE (în engleză), PubChem, accesat în  
  2. ^ a b Vogt, H.; Balej, J; Bennett, J. E.; Wintzer, P.; Sheikh, S. A.; Gallone, P.; Vasudevan, S.; Pelin, K. (). „Chlorine Oxides and Chlorine Oxygen Acids”. Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH. doi:10.1002/14356007.a06_483.pub2. 

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