Filter

Grade

1. ACS reagent (9)
2. For HPLC (1)
3. Puriss (15)
4. Puriss. p.a. (25)
5. Reagent grade (1)
6. ReagentPlus® (24)

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. 99.9% (1)
8. ≥25% NH3 basis (3)
9. ≥37% (5)
10. ≥65% (3)
11. ≥85% (5)
12. ≥98% (5)
13. ≥98.5% (4)
14. ≥99% (12)
15. ≥99.0% (1)
16. ≥99.5% (2)
17. ≥99.8% (4)

Concentration

1. 30 wt. % in H2O (1)

Cation traces

1. K: ≤0.02% (4)

Quality

1. ACS reagent, reag. ISO, reag. Ph. Eur. (15)
2. ACS reagent, reag. Ph. Eur. (4)
3. Meets analytical specification of Ph. Eur., BP, USP (5)
4. Meets analytical specification of Ph. Eur., BP (4)
5. Meets analytical specification of Ph. Eur., BP, NF, FCC, E500 (6)
6. Reag. ISO, reag. Ph. Eur. (6)
7. Stabilized (1)

Form

1. Pellets (6)
2. Pellets (anhydrous) (1)
3. Solid (1)

Color

1. APHA: ≤10 (5)

Tootemark

1. Alfa Aesar GmbH & Co KG (1)
2. FLUKA (1)
3. MM (66)
4. SIAL (203)
5. SIGMA (5)
6. Sigma Aldrich (1105)
7. SIGMA-ALDRICH (495)
8. SUPELCO (5)