Thiomersal BP 500GM Go Back


: 54-64-8

Molecular Formula


Molecular Weight

: 404.81
Appearance: White or almost white, crystalline powder
Solubility: freely soluble in water, sparingly soluble or soluble in ethanol (96%), practically insoluble in methylene chloride
Identification A (By Melting point): 103°C -115°C
Identification B (By IR): IR spectra of the sample should be concomitant with IR spectra of the corresponding standard
Identification C (Mercury): The spot should disappear.
Identification C (Sulfate): A white precipitate should form
Identification D (By sodium): A dense white precipitate should form.
Appearance of solution: Solution should not be more opalescent than reference suspension II and not more intensely coloured than reference solution B6
pH: 6.0 - 8.0
Inorganic mercury compounds: 0.70 % max.
Loss on drying: 0.5% max.
Assay: 97.0% - 101.0%
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