Items

Quality standard

Result

Appearance

Colourless, syrupy liquid

Colourless, syrupy liquid

Dry substance %

≥ 70

70.8

Water content%

≤30

29.2

Refractive index(℃)

≥1.4575

1.4605

Specific gravity(20℃) g/ml

≥1.290

1.3050

D-Sorbitol     %

71-83 (as dry substance)

79.6

D-Mannitol

≤2.0

1.69

Resistivity µs/cm

≤10

0.22

Reducing sugars %

≤0.15

0.04

Total sugars %

6.0-10.0

7.51

Nickel    mg/kg

≤1.0

<1.0

Iron      mg/kg

≤1.0

<1.0

Chloride  mg/kg

≤10

<10

Sulphate  mg/kg

≤20

<20

Heavy metals(as Pb) mg/kg

≤1.0

<1.0

Arsenic(as As2O3)  mg/kg

≤1.0

<1.0

Sulphated ash       %

≤0.10

<0.10

Fungus number

≤100

≤100

PH

5.0-7.5

6.9

Resist experiment

-18℃ 48h Non-crystal

-18℃ 48h Non-crystal