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| CAS号 : | 95-95-4 |
精确质量 : | 195.92500 |
| 分子式 : | C6H3Cl3O |
logP : | 3.35240 |
| 分子量 : | 197.44600 |
PSA : | 20.23000 |
2,4,5-三氯苯酚 | |
2,4,5-trichlorophenol | |
95-95-4 | |
C6H3Cl3O | |
197.44600 | |
20.23000 | |
3.35240 | |
195.92500 |
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白色至灰白色结晶固体
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1.608
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Stable. Note that this material creates dioxin in alkaline media at elevated temperatures.
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253°C
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库房通风低温干燥,与酸类、氧化剂、食品添加剂分开存放
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67-69 °C(lit.)
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1,678 g/cm3
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248 °C740 mm Hg(lit.)
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III
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6.1
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2908199090
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UN 3077 9/PG 3
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3
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R22; R36/38; R50/53
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S26-S28-S60-S61-S28A-S45-S36/37
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SN1400000
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Xn; N
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品名, 成分含量, 用途 |
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HS:2908199090 其他酚及酚醇的仅含卤素取代基的衍生物及其盐 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:5.5% 普通关税:30.0% |
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HS: 2908199090. derivatives of polyphenols or phenol-alcohols containing only halogen substituents and their salts. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tariff:5.5%. general tariff:30.0% |
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将2,3,5,6-四氯苯、固碱、甲醇投入高压釜,控制温度在135-152℃,压力为0.5-1.4MPa,保持14h。将反应液冷至60℃,蒸馏回收甲醇,放出残液,冷却结晶,过滤。将结晶溶于水,加热至70℃,加入保险粉,调节pH=9.2-9.6,加入活性炭,于95℃脱色半小时。过滤,滤液冷至15℃以下,加盐酸至pH=2-3,滤取2,4,5-三氯酚,于45℃干燥得成品。 | |
用作杀霉菌剂、气相色谱对比样品。 |
