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Is HCl certificate-of-analysis lacking?

Hi
I have recently found a new job in galvanizing industry as a Quality Assurance, which is a new environment for me. My question is on the certificate of analysis from our supplier; it only shows the strength of hydrochloric acid but the is no specific gravity/density. Is it normal or I should insist for the inclusion of SG in the certificate.

Monde Chete
Quality Assurance - South Africa
March 10, 2011

I would say it is normal for the C of A to just give you the concentration, but some manufacturers might also include the specific gravity. If you need to know the specific gravity, you can always look it up in a chemical reference like CRC or Perry's where they will have a table that lists the specific gravity at various concentrations of HCl.

Jon Barrows, MSF, EHSSC
GOAD Company

Independence, Missouri

March 11, 2011

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