99.5-100.5% (calc. to the dried substance)
powder or crystals
meets analytical specification of Ph. Eur., BP, NF, FCC, E500
alkali hydroxides and bicarbonates, complies
<5 ppm heavy metals (as Pb)
≤0.5% loss on drying, 300 °C
<0.5% loss on drying, 105°C, 4hrs
12 (25 °C, 106 g/L)
851 °C (lit.)
chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤50 mg/kg
As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤4 mg/kg
Pb: >2 ppm
Zn: ≤20 mg/kg
complies for appearance of solution
Looking for similar products? Visit Product Comparison Guide
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.
How to Find the Product Number
Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (Example: T1503).
enter as 1.000309185)
Having trouble? Feel free to contact Technical Service for assistance.
How to Find a Lot/Batch Number for COA
Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.
For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').
For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').
For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.
In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.