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Specifically I am looking for the IR of the sodium hexametaphosphate compound.

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  • $\begingroup$ Can you elaborate the question a bit, to add more context? And the title should ideally be short, and any additional information is better placed in the description. $\endgroup$ – Shoubhik R Maiti Jul 25 '19 at 15:29
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Specific for your compound you find at least two public IR spectra, either in KBr:

enter image description here (source)

or from one of the larger chemical vendors as .pdf

enter image description here (source, Sigma-Aldrich, product number 305553, CAS-RN 68915-31-1)

More generally speaking for phosphates, you equally find some related entries in NIST webbook chemistry here, too.

For IR-spectra in general, beside the SDBS with focus on organic compounds and sources already mentioned, there are three big multi-volume collections: Aldrich (equally one large about NMR) which is why frequently chemicals in their online catalogue have a link to either IR or/and NMR spectrum, too. The Sadtler collection is equally broad and diverse, organizes the entries by field of application (e.g., pharmaceuticals, forensics). At least in part Sadtler is electronically available via BioRad / KnowItAll, too. Finally Hummel, with emphazis on polymers / plastics. Because many products of chemical synthesis are characterized by IR spectroscopy, too, you may find them indexed in databases like Reaxys (Elsevier) and Scifinder (American Chemical Society), too.

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