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Re: [APD] Calcium Nitrate



> [mailto:aquatic-plants-bounces+skettle=snclavalinprofac_com at ac
> twin.com] On Behalf Of Jerry Smith
> Sent: Monday, July 17, 2006 4:21 PM
> To: aquatic-plants at actwin_com
> Subject: Re: [APD] Calcium Nitrate
> 
> Sean
> 
> Here are solubilities I looked up in the CRC Handbook of Chemistry and
> Physics:
> 
> Calcium Nitrate Ca(NO3)2   121.2 gm/100 cc H2O @ 18 C
> 
> Calcium Nitrate, tetrahydrate  Ca(NO3)2-4H2O   266 gm/100 cc H2O @ 0C
> 
> Calcium Nitrate, trihydrate  Ca(NO3)2-3H2O   Insoluble in water
> 
> Calcium Carbonate  CaCO3   0.0014 gm/100 cc @ 25 C
> 
> Calcium Carbonate, hexahydrate   CaCO3-6H2O  Insoluble in water
> 
> I haven't used calcium nitrate in my tanks but I have used it 
> to mix up fertilizer for my cactus. As the solubilities show 
> above it will be orders of magnitude more soluble than carbonate.
> 
> Jerry Smith, Bloomingdale, NJ

Wow, great info Jerry.. Thanks!  Out of curiosity, what are the values
for Calcium Sulfate?

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