两者都是低芳烃溶剂，但工艺路线不同：异构烷烃是合成/深度加氢异构化得到的近纯异构烷烃，气味极低、芳烃接近零；脱芳烃溶剂油是石油馏分经加氢脱芳得到的窄馏分，成本低、馏程更宽。按气味、纯度与成本取舍。 Both are low-aromatic solvents but made differently: isoparaffins are nearly pure iso-paraffins from deep hydroisomerisation, with very low odour and almost zero aromatics; dearomatized solvent oil is a narrow petroleum cut treated by hydrodearomatisation — cheaper, with a wider range. Choose by odour, purity and cost.
气味与纯度差别有多大？ How different are odour and purity?
异构烷烃几乎无味、芳烃含量极低，适合室内、密闭空间与对气味敏感的应用；脱芳烃溶剂油仍可能残留轻微气味，但已明显低于普通溶剂油。对气味敏感的场合优先异构烷烃。 Isoparaffins are practically odourless with very low aromatics, suiting indoor, enclosed and odour-sensitive applications; dearomatized oil may retain a slight odour but far less than standard solvent oil. Choose isoparaffin where odour matters.
两者能互相替代吗？ Can they substitute for each other?
在多数清洗、稀释、气雾剂场景可以按馏程和溶解力替代，但替代前要核对三件事：闪点是否满足安全口径、馏程是否匹配干燥要求、对基材的侵蚀是否在允许范围。 In most cleaning, dilution and aerosol applications they can substitute, but check three things first: flash point against your safety rules, distillation range against drying needs, and substrate attack within tolerance.
成本怎么权衡？ How to weigh the cost?
异构烷烃价格通常高于同馏程的脱芳烃溶剂油。用量大、对气味要求不苛刻的场景用脱芳烃更经济；终端用户对气味、VOC 有明确要求时，异构烷烃的溢价通常能被接受。 Isoparaffins normally cost more than dearomatized oil of the same range. High-volume applications without odour constraints favour dearomatized oil; where the end customer specifies odour or VOC limits, the premium is usually accepted.
还有哪些常见品种？ What other grades exist?
同族还有高碳正构烷烃、高沸点芳烃溶剂油与脱芳烃 D 系列溶剂油。正构烷烃纯度高、馏程窄，适合对纯度要求高的场合；高沸点芳烃溶剂油溶解力强，用于油墨与涂料，但气味与环保压力大。 Related families include high-carbon normal paraffins, high-boiling aromatic solvent oil and the dearomatized D series. Normal paraffins are pure with narrow ranges for high-purity needs; high-boiling aromatic oil dissolves strongly and serves inks and coatings but carries odour and regulatory pressure.
对比一览 Comparison
| 指标 Parameter | 异构烷烃（IP 系列） Isoparaffin (IP series) | 脱芳烃溶剂油（D 系列） Dearomatized oil (D series) |
|---|---|---|
| 芳烃含量 Aromatic content | 极低 Very low | 低 Low |
| 气味 Odour | 几乎无味 Practically none | 轻微 Slight |
| 馏程宽度 Distillation width | 窄 Narrow | 相对更宽 Relatively wider |
| 成本 Cost | 较高 Higher | 更经济 More economical |
| 典型用途 Typical use | 气雾剂、干洗、电子清洗、高档涂料 Aerosols, dry cleaning, electronics, premium coatings | 工业清洗、稀释、通用涂料油墨 Industrial cleaning, dilution, general inks and coatings |
常见问题 FAQ
异构烷烃溶剂的闪点高吗？ Is the flash point of isoparaffins high?
取决于馏程。轻质异构烷烃闪点可以很低，属于易燃液体；高馏程品种闪点更高。上海鱼童实业在售溶剂品种闭口闪点均在 60 ℃ 以上，不涉及危险化学品经营。 It follows the distillation range. Light isoparaffins can have very low flash points and are flammable; higher cuts are safer. All solvent grades sold by Shanghai Yutong Industrial have closed-cup flash points above 60 °C.
脱芳烃溶剂油能用于清洗电子件吗？ Can dearomatized oil clean electronics?
可以，但要看残留与气味要求。对残留要求严格的精密清洗通常选窄馏程、低残留的品种，并在清洗后验证干燥与残留。 Yes, subject to residue and odour limits. Precision cleaning with strict residue limits normally uses narrow, low-residue grades, with drying and residue verified afterwards.
采购时应该向供应商要哪些指标？ Which specifications should I require?
至少四项：馏程（初馏点 / 干点）、闭口闪点、芳烃含量、密度。包装与批次一致性也要写进订单，避免不同批次挥发速度不一致。 At least four: distillation range (IBP / FBP), closed-cup flash point, aromatic content, density. Also specify packaging and batch consistency so evaporation speed does not vary between lots.
高沸点芳烃溶剂油还有人用吗？ Is high-boiling aromatic oil still used?
仍在油墨、涂料与部分工业清洗中使用，因为溶解力强、成本有优势。但气味与环保压力较大，新配方通常会优先考虑低芳烃替代。 Still used in inks, coatings and some industrial cleaning for its strong solvency and cost. Odour and regulatory pressure are driving new formulations toward low-aromatic alternatives.
参考资料 References
本页内容用于选型参考，具体指标以该批次的 COA 与 TDS 为准。