Density of solutions of dissolved solids (NaCN, Lime, SMBS)

[ColourfulFigsnDiags]

Hi guys, I need a way to detirmine the density of a solution in which I have dissolved solids to a certain w/w concentration- be they Sodium cyanide, Lime (hydrated), and Sodium metabisulphite (SMBS).

Where would I look for this information?

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[Locar]

I don't know if you would find what you are looking for in a literature search. I would recommend something like an helium/air pycnometer

 

[askan]

It depends where you're coming from. I assume you want to take a sample from an already made-up solution and check the % dissolved solids. If you do not have the info, there is a way to do this yourself. Use e.g. a 250 ml measuring flask. Weigh it empty and dry. Weigh off a mass of salt, e.g 50 gram and add to measuring flask. Add water to dissolve salt and top up meniscus to the mark. Calculate the RD of solution at the % solids. Repeat for at least 2 more masses of salt. , e.g 100 g and 150 g to cover the span of normal concentration. Now you have a calibration curve. When taking a sample of unknown % dissolved solids use measuring flask to determine RD using a scale and read off % dissolved solids from calibration curve. QED

 

[ColourfulFigsnDiags]

Ummm, no, perhaps you have missunderstood me.

I want to know what the density of a (for example) solution of 20 w/w% SMBS will be so that I can calculate what volume x many tons of it will occupy. I do not have access to experimental apparatus- and I know it is a straight forward matter to figure it out experimentally, but that doesn't help me sitting at my desk.

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[elguero]

Try "Mellor's Inorganic Chemistry" or the "International Critical Tables."

 

[EdStainless]

You need empirical data, maybe from some of the bulk chemical mfgs.
How about the handy CRC? In section D, Concetrative Properties of Aqueous Solutions. My old one olny lists one of the chemicals that you mention.

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