Specification of Ammonium PerRhenate
The number of Rhenium producers grow like mushrooms after summer rain but we still try to keep up-to-date information.

Impurities
ppm 		MMTA Russian GOST Chinese grades Typical* quality by Western producers
Kazakhstan Uzbekistan Russia China Heraeus Molymet KGHM Ecoren Phelps-Dodge SEKOM Impuritiesppm (max)
Basic Catalyst Metal AP-0 AP-1 Super Standard Zhezkazgan Shymkent Navoi Almalyk Tchirchik Vladikavkaz Krasnoyarks Angarsk Roshal Zhuzhou Chengdu Jiangxi max. catalyst superalloy typical max. typical max. Typical Guaranteed
Ag 50 <1 <1 5 1 10 <5 Ag
Al 500 10 5 20 0.1 1 <1 <5 0.4 5 2 4.5 - 5 1-8.5 2.9-4.5 2-20 1 1 10 30 <1 10 5 50 5 <10 Al
As 30 <5 <5 <5 <1 <5 1 <5 5 5 20 <1 As
B <1 10 200 <1 1-3 <10 B
Ba 0.1 1 <5 <1 10 1 1 20 10 <1 Ba
Be 0.1 1 <5 1 1 <5 Be
Bi <5 <1 0.3 <5 1 1 <1 Bi
C <50 30 14 30 <30 C
Ca 500 50 10 10 30 0.5 5 <1 4 <1 10 2 4 - 8 <60 1 - 9 0.3-7 5 5 5-10 5 <1 5 2 10 15 5 <1 Ca
Cd 0.1 2 <1 <1 <1 <1 110++ 10 2 <2 50 10 2 10 <5 Cd
Cl 100 <100 50 50 50 <1 Cl
Co 50 5 0.1 1 <1 <5 <1 <1 <1 10 1 1 <2 100 10 2 10 <10 Co
Cr 50 5 0.1 1 <2 <5 <2 <1 <2 10 1 1 <2 100 5 2 10 <10 Cr
Cu 500 50 5 0.5 10 0.1 1 0.5 0.5 0.2 0.5 1 1 - 2 0.2 0.5-1.5 <0. 1 1 2-5 50 5 2 5 15 7 <5 Cu
Fe 500 50 20 5 10 0.5 5 <1 <2 <1 5 20 - 24 7 - 9 1-3 3-9 2-10 5 5 5-10 50 10 5 3 5 50 20 <20 Fe
Ga <1 10 50 5 Ga
Hf <1 10 200 5 <5 Hf
Hg 10 10 1 Hg
In <1 50 20 <0.1 In
Ir 75 <5 50 Ir
K 500 200 20 50 100 0.5 5 45-50 6 <16 8-61 61 - 68 10 8-60 50-270++ 10-160 5 5 10-12 10 5 10 20 15 7 <10 K
Mg 500 50 5 2 20 0.1 2 <1 2 <1 2 1 - 2 <1 0.4-0.7 0.1-1 2 2 5 100 <1 10 2 5 7 1 <5 Mg
Mn 500 50 5 1 20 0.1 1 <1 1 <1 1 1 0.1 0.2 0.1-1 1 1 3-5 20 5 2 5 <5 Mn
Mo 500 100 20 5 100 0.5 5 <1 5 <1 5-16 5 - 8 1.5 - 30 <2 5-10 0.7-10 5 5 9-10 50 <3 10 10 5 150 35 <35 Mo
Na 500 50 5 10 20 0.5 5 <1 <5 <5 9 5 10 1-6 5 <2 5 5 10-20 10 <3 3-4 2 5 20 1 <1 Na
Nb <1 10 200 2 <5 Nb
Ni 500 50 5 2 20 0.1 1 <2 <2 <2 2 2 1 - 3 0.2 0.2-0.5 0.5-6 1 1 2-5 20 <1 5 2 5 15 7 <10 Ni
P 500 20 20 10 <5 <5 <5 <1 10 5-10 3-4 8-9 <10 30 <3 10 50 <10 P
Pb 30 0.1 1 <5 <5 <1 <2 250++ 10 1 1 5-6 2 2 2 5 7 5 <2 Pb
Pd 50 <2 10 Pd
Pt 0.1 1 <5 39-70 1 1 10 Pt
Rh 50 <2 10 Rh
Ru 50 <2 10 Ru
S 500 20 50 100 <10 50 13-20 5 20 10-38 5 0.1 <10 15 <10 15 20 <10 S
Sb 30 0.1 2 <5 <5 <1 <2 3 2 2 <5 5 5 10 <0.1 Sb
Se <5 <5 2 5 <2 5 20 <0.1 Se
Si 500 50 30 10 20 1 <10 <10 10 10 4.5 - 9 6-12 1 2-<10 10 10 20 <5 10 10 20 10 10 <5 Si
Sn 50 0.1 1 <5 <5 <1 <2 2 1 1 <5 10 10 10 3 1 <0.1 Sn
Sr 10 <0.1 Sr
Ta <10 10 200 <10 20 <20 Ta
Te <1 1 <0.5 1 <5 Te
Th <5 <1 10 10 <20 Th
Ti 0.1 1 <1 <5 <1 10 1 1 50 3 5 10 <5 Ti
Tl <1 1 <1 1 <0.1 Tl
U <5
V <1 <1 10 200 5 50 <0.1 V
W 5 0.5 5 <5 <5 <1 <5 5 5 <10 50 <8 10 10 20 <20 W
Zn 50 5 0.1 2 20 <5 <1 <1 2 10 210++ 3 2 2 0.5 50 <1 10 2 5 <20 Zn
Zr <1 <1 10 <2 30 <1 5 <1 Zr
H2O 0.10% 0.10% 0.10% 0.03% 0.00-0.02% 0.011% 0.042% 0.02% 0.17% 0.7-0.8% <0.01% 120 0.1% <0.2% H2O
Re min.
(NH4ReO4) 		69.0% 68.5-
69.8% 		69.0% 69.0% 68.5-
69.0% 		99.999%
69.41% 		99.99% 69.2-
69.3% 		69.0-
69.40% 		69.14% 69.3% 69.15-
69.25% 		69.0-
69.1% 		69.40-69.41% 67.9-
69.3% 		69.0-
69.4% 		69.4% 69.3-69.4% 69.2-
69.4% 		69.4% 69.4% 69.4% 99.95% 69.39% 99.99% Re min.
(NH4ReO4)

*Typical quality according to producer or neutral assayer quality certificates.

++On specific lots we measured extreme high values for this impurities, however most of the cases these values are in the range of specification AR-0