MAGNESIUM SULPHATE HEPTAHYDRATE

SPECIFICATION

LR

AR

ACS

Insoluble Matter

---

0.003%

0.005%

pH of a 5% solution at 250C

5.0 8.2

5.0 8.0

5.0 8.2

Chloride (Cl)

0.01%

0.0002%

0.0005%

Nitrogen Compounds (N)

---

0.002%

---

Nitrate (NO3)

---

---

0.002%

Ammonium (NH4)

---

---

0.002%

Heavy Metals (as Pb)

0.0005%

0.0001%

0.0005%

Iron (Fe)

0.001%

0.0001%

0.0005%

Phosphate (PO4)

---

0.001%

---

Arsenic (As)

0.0001%

---

---

Calcium (Ca)

---

0.005%

0.02%

Copper (Cu)

---

0.0001%

---

Manganese (Mn)

---

---

0.0005%

Potassium (K)

---

0.001%

0.005%

Sodium (Na)

---

0.001%

0.005%

Zinc (Zn)

0.001%

0.0005%

---

Strontium (Sr)

---

---

0.005%

Assay

NLT 99%

NLT 99.5%

98 102%