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 (max)

MMTA

Russian GOST

Chinese grades

Typical* quality by

Western producers

Kazakhstan

Uzbekistan

Russia

China

Heraeus

Molymet

KGHM Ecoren

Phelps-Dodge

SEKOM

Impurities ppm (max)

Basic

Catalyst

Metal

AP-0

AP-1

Super

Standard

Zhezkazgan

Shymkent

Navoi

Almalyk

Tchirchik

Vladikavkaz

Krasnoyarks

Angarsk

Roshal

Zhuzhou

Chengdu

Jiangxi

max.

catalyst grade

supper alloy

typical

max.

typical

max.

Typical

Guaranteed
(max)

Ag

50

<1

<1

5

1

10

<5 

Ag

Al

500

10

5

20

0.1

1

<1

<5

0.4

1

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

<3

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

<1

1

1 - 2

0.2

0.5-1.5

<0.2

1

1

2-5

50

5

2

5

15

7

<5 

Cu

Fe

500

50

20

5

10

0.5

5

<1

<2

<1

<1

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

<10

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

<1

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

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

<2

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

<1

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

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

<2

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

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}