SPECIFICATION

LR

AR

ACS

IP

BP

USP

Insoluble Matter

---

0.003%

0.005%

pH of a 5% solution at 250C

5.5 - 8.5

5.0 - 8.0

5.4 - 8.6

Nitrogen Compounds (N)

---

0.001%

---

Iodide (I)

0.01%

0.002%

0.002%

Bromide (Br)

0.01%

0.01%

0.01%

Chlorate and Nitrate

---

---

0.003%

Sulphate (SO4)

0.02%

0.003%

0.001%

Heavy Metals (as Pb)

0.0005%

0.0002%

0.0005%

Iron (Fe)

0.001%

0.0002%

0.0003%

Phosphate (PO4)

---

0.0005%

0.0005%

Calcium (Ca)

---

0.001%

0.002%

Barium (Ba)

---

0.001%

Passes out

Magnesium (Mg)

---

0.0005%

0.001%

Sodium (Na)

0.5%

0.02%

0.005%

Assay

NLT 99.5%

NLT 99.5%

99 - 100.5%

Loss on Drying

1.0%

---

---