crova said: ↑
Its industrial grade, dont buy it. Exposed to air and moisture for god know how long.
Get 'pharma grade' instead.[/QUOTE
Can you explain this please? How do I know what grade I bought ? THanks
How do i know if the SN is pharma grade?
I read about it couple months ago.
I found Russian laboratory selling sodium nitrite from their online shop
Pharma grade describes its purity but also it was stored in air tight plastic container like other medical products so no air and moisture exposure.
I guess they could provide necessary certificate if you require one.
Industrial grade is used in meat business used as a preservative, its sold in large several kg bags