Compound

mpt/dpt (˚C)

Colour

Molecular weight

(Found calculated) %

Hydrazine

Metal

Carbon

Hydrogen

Nitrogen

Sulphur

H₂tdp

139 (134 d)^*

White

178

-

-

39.88 (40.35)

5.34 (5.61)

-

17.50 (17.98)

H₂Agun∙CO₃

169 (172 d)^*

White

136

23.45 (23.53)

-

17.54 (17.64)

5.46 (5.88)

40.95 (41.18)

-

La

110

White

1067

6.20 (6.42)

28.10 (27.91)

23.54 (23.61)

4.15 (4.31)

15.45 (15.75)

8.85 (8.99)

Pr

180

Green

1069

6.15 (6.64)

30.10 (29.25)

23.45 (23.57)

4.08 (4.30)

15.86 (15.72)

8.78 (8.98)

Nd

170

Violet

1072

7.30 (6.36)

29.50 (28.70)

23.35 (23.50)

4.15 (4.29)

15.75 (15.67)

8.82 (8.95)

Sm

120

yellow

1078

6.65 (6.50)

30.90 (30.56)

23.45 (23.37)

4.10 (4.27)

15.63 (15.58)

8.48 (8.90)