Filter

Grade

1. Puriss (4)
2. Puriss. p.a. (4)
3. Reagent grade (1)

Assay

1. 70% (1)
2. 95-97% (4)
3. 95.0-97.0% (4)
4. 99% (10)
5. 99.0-100.5% (calc. to the dried substance) (5)
6. 99.5-100.5% (calc. to the dried substance) (6)
7. ≥25% NH3 basis (3)
8. ≥37% (5)
9. ≥65% (3)
10. ≥85% (5)
11. ≥98% (5)
12. ≥98.5% (4)
13. ≥99% (12)
14. ≥99.0% (1)
15. ≥99.5% (2)
16. ≥99.8% (4)

Cation traces

1. K: ≤0.02% (4)

Quality

1. ACS reagent, reag. Ph. Eur. (4)
2. Meets analytical specification of Ph. Eur., BP (4)

Form

1. Pellets (4)
2. Pellets (anhydrous) (1)

Tootemark

1. MM (5)
2. SIAL (5)
3. Sigma Aldrich (3)