IARM FMnP-20 – Ferromanganese Powder

APPLICATION NOTE

IARM FMnP-20 – Ferromanganese Powder

SUMMARY

The application note summarizes the digestion of IARM FMnP-20, a ferromanganese powder Certified Reference Material using ColdBlock™ Digestion Pro Series Technology.

Instrument:	ColdBlock CBM sample digester, chiller, HF inserts, ICP-OES
Published:	March 2026
Digestion Time:	20 Minutes
Acid Used:	HNO₃, HF
Average ColdBlock Recovery vs. CRM:	99% Iron 101% Manganese 99% Phosphorus

Related Resources

Swedish Lab Höganäs Unveils Multifaceted Benefits Following Integration of Coldblock Into Laboratory Operations

IARM Ni718P-18 – Nickel Alloy 718, UNS N07718

MBH 65X MGA16 – Mg/Al/Zn Cast

IARM Fe316LP-18 – Stainless Steel 316L

Boost Your Lab's Speed and Efficiency with ColdBlock

METHODOLOGY

The chiller temperature was set to -5 °C.
Approximately 0.500 g of each sample was accurately weighed and transferred into a ColdBlock digestion vessel.
A reagent mixture of 20mL of 1:1 HNO₃+ 3mL HF was added to each vessel
Samples were digested at 100 % power for 5 minutes, followed by 50% power for 15 minutes.
Digestates were allowed to cool, then quantitatively diluted to a final volume of 50mL using a solution of 2 % HNO₃ _v/v.

DISCUSSION

An optional addition of boric acid (20mL of 4% _v/v H₃BO₃) can be used to complex residual fluoride ions, which stabilizes the solution and enables safe analysis on sample introduction systems that are not equipped with inert HF kits.

Results

IARM FMnP-20
Method:	0.5g	20mL 1:1 HNO₃+ 3mL HF – 100% for 5 minutes, then decrease to 50% for 15 minutes
Element	Certified Value (wt.%)	+/-	Sample A	Sample B	Sample C	Average (ppm)	Stdev	RSD	Recovery
Co	0.019	0.002	0.020	0.020	0.020	0.020	0.00005	0.2%	103%
Cr	0.036	0.002	0.036	0.035	0.036	0.036	0.0005	1.4%	99%
Cu	0.010	0.0	0.010	0.010	0.009	0.010	0.0003	3.5%	95%
Fe	16.6	0.4	16.3	16.4	16.7	16.5	0.2	1.0%	99%
Mn	79.7	0.7	80.8	80.5	80.4	80.6	0.2	0.2%	101%
Ni	0.015	0.002	0.02	0.01	0.01	0.01	0.0005	3.4%	99%
P	0.08	0.01	0.08	0.08	0.08	0.08	0.001	1.2%	99%
Si	0.42	0.03	0.41	0.40	0.45	0.42	0.02	5.9%	100%

IARM FMnP-20; Ferromanganese Powder; Analytical Reference Materials International; Manchester, NH 03103 (Oct 2020)
LGC Standards (ARMI MBH). (2020). IARM FMnP-20 Ferromanganese Powder Certified Reference Material, Certificate of Analysis, United States.

Click here to download the Application Note in PDF format.

Join our monthly e-newsletter for expert tips, updates, and exclusive content delivered straight to your inbox.

ColdBlock Technologies Inc.
4551 Zimmerman Ave
Niagara Falls, ON L2E 3M5
info@coldblock.ca.