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Studiu comparativ al bazelor
NaOH și Ca(OH)2
Caracteristici comune
Ca(OH)2-var stins
Caracteristici specifice-NaOH
- fabricarea săpunului și a detergenților;
- reactiv în laborator;
-fabricarea sodei de rufe;
-fabricarea mătăsii artificiale;
-fabricarea celulozei;
- rafinarea produselor petroliere;
-intră in compoziția unor medicamente și a unor paste de dinți;
Caracteristici specifice-Ca(OH)2
Var stins
- reactiv in laborator;
- văruirea caselor și a pomilor;
- rafinarea zahărului;
- în construcții la tencuială și mortar;
- este folosit în medicină pentru tratarea arsurilor
provocate de acizi, precum şi ca antiacid (pentru
neutralizarea acidităţii stomacale);
- este utilizat în agricultură, în amestec cu alte substanţe
se foloseşte pentru combaterea dăunătorilor;
Știați că:
- Când albina înţeapă, injectează un lichid acid în piele. Acesta poate fi
neutralizat prin tamponare cu o loţiune care conţine carbonat de zinc sau
bicarbonat de sodiu. Înţepătura de viespe este alcalină şi poarte fi prelucrată cu
oţet. De ce?
- Multe plante se dezvoltă mai bine dacă solul este neutru. Dacă solul este
prea acid sau prea alcalin, plantele se dezvoltă insuficient sau deloc. Pentru
corectarea caracterului acido-bazic a solului se adaugă diferite substanţe
chimice. Frecvent solul este prea acid şi se tratează cu substanţe bazice (CaO şi
altele).
- Deşeurile industriale lichide conţin adesea acizi. Dacă acestea ajung în râuri,
atunci va provoca moartea peştilor şi a altor organisme acvatice . Un astfel de
accident se poate preveni adăugând soluţie de hidroxid de calciu în apele
industriale pentru a le neutraliza.
VĂ MULȚUMESC!!!

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Studiu comparativ al bazelor

  • 1. Studiu comparativ al bazelor NaOH și Ca(OH)2
  • 3. Caracteristici specifice-NaOH - fabricarea săpunului și a detergenților; - reactiv în laborator; -fabricarea sodei de rufe; -fabricarea mătăsii artificiale; -fabricarea celulozei; - rafinarea produselor petroliere; -intră in compoziția unor medicamente și a unor paste de dinți;
  • 4. Caracteristici specifice-Ca(OH)2 Var stins - reactiv in laborator; - văruirea caselor și a pomilor; - rafinarea zahărului; - în construcții la tencuială și mortar; - este folosit în medicină pentru tratarea arsurilor provocate de acizi, precum şi ca antiacid (pentru neutralizarea acidităţii stomacale); - este utilizat în agricultură, în amestec cu alte substanţe se foloseşte pentru combaterea dăunătorilor;
  • 5. Știați că: - Când albina înţeapă, injectează un lichid acid în piele. Acesta poate fi neutralizat prin tamponare cu o loţiune care conţine carbonat de zinc sau bicarbonat de sodiu. Înţepătura de viespe este alcalină şi poarte fi prelucrată cu oţet. De ce? - Multe plante se dezvoltă mai bine dacă solul este neutru. Dacă solul este prea acid sau prea alcalin, plantele se dezvoltă insuficient sau deloc. Pentru corectarea caracterului acido-bazic a solului se adaugă diferite substanţe chimice. Frecvent solul este prea acid şi se tratează cu substanţe bazice (CaO şi altele). - Deşeurile industriale lichide conţin adesea acizi. Dacă acestea ajung în râuri, atunci va provoca moartea peştilor şi a altor organisme acvatice . Un astfel de accident se poate preveni adăugând soluţie de hidroxid de calciu în apele industriale pentru a le neutraliza.