• Atmospheric Short-Chain Chlorinated Paraffins in …

    This study presents the first investigation of concentrations and congener group patterns of atmospheric short-chain chlorinated paraffins (SCCPs) throughout East Asia. Based on an absorption rate calibration experiment, a spatial survey of SCCPs was performed using passive air samplers in China, Japan, and South Korea during two separate periods in 2008.

    Chat Online
  • Determination of short-chain chlorinated …

    Gas chromatography-electron capture negative ion-low resolution mass spectrometry (GC-ECNI-MS) was used for the quantification of short-chain chlorinated paraffins (SCCPs) in multiple matrices of Arctic. Samples were spiked with surrogate standards 13 C 10-trans-chlordane) and extracted with dichloromethane and hexane (1:1, v/v) using accelerated solvent extraction (ASE). The extract was ...

    Chat Online
  • Determination of short-chain chlorinated …

    Gas chromatography-electron capture negative ion-low resolution mass spectrometry (GC-ECNI-MS) was used for the quantification of short-chain chlorinated paraffins (SCCPs) in multiple matrices of Arctic. Samples were spiked with surrogate standards 13 C 10-trans-chlordane) and extracted with dichloromethane and hexane (1:1, v/v) using accelerated solvent extraction (ASE). The extract was ...

    Chat Online
  • Chlorinated paraffins - Wikipedia

    Chlorinated paraffins (CPs) are complex mixtures of polychlorinated n-alkanes.The chlorination degree of CPs can vary between 30 and 70 wt%.CPs are subdivided according to their carbon chain length into short-chain CPs (SCCPs, C 10–13), medium-chain CPs (MCCPs, C 14–17) and long-chain CPs (LCCPs, C >17).Depending on chain length and chlorine content, CPs are colorless or yellowish …

    Chat Online
  • Short-chain chlorinated paraffins (SCCPs) in …

    Short-chain chlorinated paraffins (SCCPs) are extremely complex technical mixtures of polychlorinated n-alkanes with carbon chain lengths from C10 to C13 and chlorine content between 49 and 70%. SCCPs are under consideration for inclusion in the Stockholm Convention on persistent organic pollutants. SCCPs have been used extensively in industrial production, but little is known about the ...

    Chat Online
  • Chemical Profile - Chloroparaffins | ICIS

    ICIS Price Forecast Reports; Margin Data; News; Subscriber Platform; China Market Intelligence; Recycling & Sustainability Hub; Analytics. R-PET Pricing & Analytics; Petrochemical Analytics; ICIS Supply and Demand Data; LNG Market Intelligence Solutions ; Power Analytics; Carbon market analytics; Specialist services. Conferences; Training; Events; Consulting; Third Party Platforms; ICIS ...

    Chat Online
  • Listing of POPs in the Stockholm Convention

    Chlorinated paraffins are produced by chlorination of straight-chained paraffin fractions. The carbon chain length of commercial chlorinated paraffins is usually between 10 and 30 carbon atoms. Short-chained chlorinated paraffins is between C10 and C13. The production of SCCPs has decreased globally as jurisdictions have established control measures.

    Chat Online
  • (PDF) Short-chain chlorinated paraffins in …

    Short-chain chlorinated paraffins (SCCPs) are highly complex technical mixtures of polychlorinated n-alkanes with carbon-chain lengths from C 10-C 13 and chlorine content between 49 and 70%.

    Chat Online
  • Risk Management for Short-Chain Chlorinated …

    For purposes of the Short-Chain Chlorinated Paraffins (SCCPs) Action Plan (PDF), short-chain chlorinated paraffins (SCCPs) include all individual chemicals or mixtures that contain: C x H (2x-y+2) Cl y where x = 10-13; y = 3-12; and the average chlorine content ranges from approximately 40 to 70 percent with the limiting molecular formulas set at C 10 H 19 Cl 3 and C 13 H 16 Cl 12. SCCPs are ...

    Chat Online
  • Risk assessment of chlorinated paraffins in feed …

    SCCPs: short‐chain chlorinated paraffins; MCCPs: medium‐chain chlorinated paraffins; LCCPs: long‐chain chlorinated paraffins. a Depending on the carbon chain length and chlorine content. b As stabilisers, to improve thermal and photo stability. c Around 200°C decomposition with release of hydrogen chloride occurs. 1.3.2 Production and industrial use. The many theoretical combinations ...

    Chat Online
  • Altitude-dependent accumulation of short chain chlorinated ...

    Short chain chlorinated paraffins (SCCPs) have recently been included into the Stockholm Convention as a new class of POPs. However, the long-range transport behavior and environmental fate of SCCPs still remain largely unknown in high-altitude mountain areas. In this study, a total of 51 fish samples were collected from five high-altitude mountain lakes and Lasha river across the Tibetan ...

    Chat Online
  • Atmospheric short-chain chlorinated paraffins …

    Atmospheric short-chain chlorinated paraffins in China, Japan, and South Korea. [Qilu Li, Jun Li, Yan Wang, Yue Xu, Xiaohui Pan, Gan Zhang, Chunling Luo, Yuso Kobara, Jae-Jak Nam, Kevin C Jones] PMID 23025799 . Abstract This study presents the first investigation of concentrations and congener group patterns of atmospheric short-chain chlorinated paraffins (SCCPs) throughout East Asia. …

    Chat Online
  • Concentrations of short- and medium-chain …

    Levels and distribution of short- and medium-chain chlorinated paraffins (SCCPs and MCCPs) were measured in indoor dusts from malls in China. The concentrations of SCCPs and MCCPs in dustfalls from a building material mall ranged from 6.0 to 361.4 μg g −1 and from 5.0 to 285.9 μg g −1, respectively.Much heavier contamination was found in central air conditioner filter (CACF) dusts from …

    Chat Online
  • Development of a method for the determination of SCCPs ...

    Short-chain chlorinated paraffins (SCCPs) are complex technical mixtures of halogenated contaminants with linear carbon chain lengths from 10 to 13. The chlorine content ranges from 30 to 70% (calculated by weight). Technical mixtures are used as extreme pressure addi-tives in lubricants, flame retardants in plastics and paints, plasticizers in coatings, sealants and adhesives, and in leather ...

    Chat Online
  • SHORT-CHAIN CHLORINATED PARAFFINS IN BIOTA – LEVELS …

    Short-chain chlorinated paraffins (SCCPs) are highly complex technical mixtures of polychlorinated n -alkanes with carbon-chain lengths from C 10 -C 13 and chlorine content between 49 and 70%.

    Chat Online

Related Products