Industrial & specialty chemicals
Potassium Chloride (E 508)
Potassium chloride for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
Key facts
| CAS No. | 7447-40-7 |
|---|---|
| E-number (EU) | E 508 |
| Synonyms | Sylvine, Sylvite |
| Chemical formula | KCl |
| Molecular weight | 74,56 |
| Description | Colourless, elongated, prismatic or cubital crystals or white granular powder. Odourless |
| Solubility | Freely soluble in water. Insoluble in ethanol |
| Grades | EU Reg. 231/2012 (E 508) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What potassium chloride is
Chemical name: Potassium chloride. Formula KCl, molecular weight 74,56. Colourless, elongated, prismatic or cubital crystals or white granular powder. Odourless. Freely soluble in water. Insoluble in ethanol. (Source: EU Regulation 231/2012, E 508.)
Sample specification
Values from EU Regulation 231/2012 (E 508), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | Content not less than 99 % on the dried basis |
|---|---|
| Loss on drying | Not more than 1 % (105 °C, 2 hours) |
| Test for sodium | Negative |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Cadmium | Not more than 1 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 508). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with potassium chloride?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on drying, test for sodium, arsenic, lead, mercury and cadmium, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
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Need potassium chloride?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.