Customization: | Available |
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State: | Powder |
Extract Source: | Rhododendron |
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Items | Standard | Results | |||
Appeaeance | White powder solid | Qualified | |||
Content | ≥99.00% | 99.42% | |||
Total dicarboxylic acid content | ≥99.5% | 99.57% | |||
Monoacid content | ≤0.10% | 0.08% | |||
Melting point | 107.5ºC-108.5ºC | 107.6ºC-108.2ºC | |||
Acid value | 585.0mgKOH/g-595.0mgKOH/g | 593.7mgKOH/g | |||
Water content | ≤0.5% | 0.39% | |||
Ash content | ≤0.05% | 0.02% | |||
Heavy metal | ≤0.001% | 0.0008% | |||
Light transmittance,440nm | 97%-100% | 98% | |||
Light transmittance,550nm | 97%-100% | 98% | |||
Partide size | 50um | 98.0%<50um 30%<30um |
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The chloride ion | ≤0.005% | 0.003% | |||
Sulfate | ≤0.025% | 0.020% | |||
Iron ions | ≤0.002% | 0.0019% |