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| CAS号 : | 83-40-9 |
精确质量 : | 152.04700 |
| 分子式 : | C8H8O3 |
logP : | 1.39880 |
| 分子量 : | 152.14700 |
PSA : | 57.53000 |
3-甲基水杨酸 | |
3-methylsalicylic acid | |
83-40-9 | |
C8H8O3 | |
152.14700 | |
57.53000 | |
1.39880 | |
152.04700 |
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白色至略微红的结晶固体
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145.4ºC
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293.2ºC at 760 mmHg
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98-100 °C(lit.)
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1.5 g/L (20 ºC)
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1.304 g/cm3
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Volatile in steam.
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Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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BZ4385000
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3
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S26-S36/39-S22
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UN 2811
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2918290000
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Xn
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R22; R41
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HS: 2918290000 Other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives |
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品名, 成分含量, 用途 |
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A.入境货物通关单 B.出境货物通关单 |
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R.进口食品卫生监督检验 S.出口食品卫生监督检验 |
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2918290000 其他含酚基但不含其他含氧基羧酸及其酸酐、酰卤化物、过氧化物和过氧酸及它们的衍生物。监管条件:AB(入境货物通关单,出境货物通关单)。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0% |
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HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |
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它的生产有固相法和溶剂法,两者相比后者不需要处理吸湿性很强的邻甲酚钠盐干粉末。反应物料系液相碳羧化反应时通CO2一次完成,不需中途蒸酚,在普通的压力设备中便能进行生产,减少了使用脱水和碳羧化设备。两种方法的生产原理是相同的。 | |
本品可用于制造偶氮染料,特别是酸性媒介漂蓝B染料,以它为原料还可制备蓝、紫、棕、绿等三苯甲烷类媒介染料20多种。 |