dibenzofuran-3-sulfonic acid

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: dibenzofuran-3-sulfonic acid
• 英文别名: Dibenzofuran-3-sulfonsaeure；Dibenzofuran-sulfonsaeure-(2)；Dibenzofuran-2-sulfonsaeure；Dibenzo[b,d]furan-3-sulfonic acid
• 化学式: C₁₂H₈O₄S
• 分子量: 248.259
• InChiKey: QQYILFJVCFLPNB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  75.9
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3-氨基二苯并呋喃 在 硫酸 、 sodium nitrite 作用下， 生成 dibenzofuran-3-sulfonic acid
  参考文献：
  名称：

  Dibenzofuran. VII. Derivatives of Tetrahydrodibenzofuran

  摘要：

  DOI：

  10.1021/ja01314a018

文献信息

• Ultralow range fluorometer calibration
  申请人：Ecolab USA Inc.

  公开号：US10852235B2

  公开（公告）日：2020-12-01

  A fluorometer may be used to measure ultralow concentrations of fluorescing species, such as ultralow concentrations of fluorescent tracer passing through a reverse osmosis membrane into a permeate stream. In some examples, the fluorometer may be recalibrated by resetting some but not all of the calibration parameters used to determine the concentration of fluorescent tracer in the permeate based on the measured fluorescent response of the fluorometer. For example, an intercept of a calibration curve may be reset or recalibrated for the fluorometer in situ, potentially providing significant accuracy improvements even though the fluorometer has not undergone a full recalibration.

  荧光计可用于测量超低浓度的荧光物质，例如穿过反渗透膜进入渗透液流的超低浓度荧光示踪剂。在某些示例中，可以根据荧光计测得的荧光响应，通过重新设置用于确定渗透液中荧光示踪剂浓度的部分而非全部校准参数，对荧光计进行重新校准。例如，校准曲线的截距可就地重设或重新校准荧光计，即使荧光计没有经过全面的重新校准，也能显著提高精度。
• Tetrazole based corrosion inhibitors
  申请人：ECOLAB USA INC.

  公开号：US10899721B2

  公开（公告）日：2021-01-26

  Disclosed are corrosion inhibitor compounds and compositions useful for preventing or inhibiting corrosion of surfaces found in cooling water applications. In some embodiments, the surfaces may include mild steel, aluminum, brass, copper, galvanized steel, a copper alloy, admirality brass, or any combination thereof. Also disclosed are methods of using the compounds and compositions as corrosion inhibitors. In some embodiments, the corrosion inhibitor compounds and compositions are used in cooling water applications.

  所公开的缓蚀剂化合物和组合物可用于防止或抑制冷却水应用中表面的腐蚀。在某些实施方案中，表面可包括低碳钢、铝、黄铜、铜、镀锌钢、铜合金、钦佩黄铜或它们的任意组合。此外，还公开了将化合物和组合物用作腐蚀抑制剂的方法。在某些实施方案中，缓蚀剂化合物和组合物用于冷却水应用。
• Method of monitoring membrane separation processes
  申请人：——

  公开号：US20040185472A1

  公开（公告）日：2004-09-23

  Methods and systems for monitoring and controlling membrane separation systems are provided. The present invention uses measurable amounts of one or more inert fluorescent tracers added to a feed stream to evaluate and/or control the unit operation of processing such feed stream during membrane separation. The methods and systems of the present invention can be used in a variety of different industrial applications including raw water processing and waste water processing.

  本发明提供了监测和控制膜分离系统的方法和系统。本发明利用添加到进料流中的一种或多种惰性荧光示踪剂的可测量量来评估和/或控制膜分离过程中处理这种进料流的单元操作。本发明的方法和系统可用于各种不同的工业应用，包括原水处理和废水处理。
• Method of monitoring treating agent residuals in water treatment processes
  申请人：Johnson S. Brian

  公开号：US20060160226A1

  公开（公告）日：2006-07-20

  A method of monitoring residual treating agent in treated water wherein fluorescent tracers are used to determine the concentration of treating agent in the water at two different treating agent dosages and the difference in the measured concentrations of the fluorescent tracer at the respective doses are correlated with the residual concentration of the treating agent. The fluorescence response at the different treating agent dosages is used to determine whether the system is overdosed or underdosed on a continuous basis and to control treating agent dose accordingly.

  一种监测处理过的水中残留处理剂的方法，其中使用荧光示踪剂来确定两种不同处理剂剂量下水中的处理剂浓度，并将各自剂量下测得的荧光示踪剂浓度差值与处理剂的残留浓度相关联。根据不同处理剂剂量下的荧光反应，可连续确定系统中的处理剂是过量还是不足，并据此控制处理剂的剂量。
• CONTROL OF COOLING WATER SYSTEM USING RATE OF CONSUMPTION OF FLUORESCENT POLYMER
  申请人：Nalco Company

  公开号：EP1740506A2

  公开（公告）日：2007-01-10