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Physical and chemical indicators：
Betaine anhydrous | Main content | Appearance | Loss on drying | lead（Pb） | Arsenic （As） | Trimethylamine residue | Ignition residue | Sodium chloride |
≥75% | White to off-white granular or crystalline powder | ≤5.0% | ≤10mg/kg | ≤2.0mg/kg | - | - | ≥15.0% | |
≥96% | White, off-white or slightly yellow crystalline powder | ≤2.0% | ≤10mg/kg | ≤2.0mg/kg | ≤100mg/kg | ≤2.5% | ≤0.3% | |
Betaine monohydrate | ≥85% | White or off-white crystalline powder or granules | ≤15.0% | ≤10mg/kg | ≤2.0mg/kg | ≤300mg/kg | ≤0.5% | ≤0.5%（as Cl） |
Physical and chemical indicators：
Betaine anhydrous | Main content | Appearance | Loss on drying | lead（Pb） | Arsenic （As） | Trimethylamine residue | Ignition residue | Sodium chloride |
≥75% | White to off-white granular or crystalline powder | ≤5.0% | ≤10mg/kg | ≤2.0mg/kg | - | - | ≥15.0% | |
≥96% | White, off-white or slightly yellow crystalline powder | ≤2.0% | ≤10mg/kg | ≤2.0mg/kg | ≤100mg/kg | ≤2.5% | ≤0.3% | |
Betaine monohydrate | ≥85% | White or off-white crystalline powder or granules | ≤15.0% | ≤10mg/kg | ≤2.0mg/kg | ≤300mg/kg | ≤0.5% | ≤0.5%（as Cl） |