Item

Standard

Monosodium glutamate (on a dry basis), ω/%    ≥  

99.0

 Transmittance, ω/%                         ≥

98

Specific optical rotation (on a dry basis) [α]D20(°)-m²-kg-1

+24.0～+25.3

Chloride (as Cl), ω/%                        ≤

0.1

PH(10%)

6.7～7.5

Loss on drying ω/%                         ≤

0.5

Iron (Fe), /(mg/kg)                           ≤

5

Sulfate (as SO4), ω/%                        ≤

0.05

Arsenic (As)/(mg/kg)                         ≤

2.0

Lead (Pb)/(mg/kg)                           ≤

1.0