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25512-42-9

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25512-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25512-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,1 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25512-42:
(7*2)+(6*5)+(5*5)+(4*1)+(3*2)+(2*4)+(1*2)=89
89 % 10 = 9
So 25512-42-9 is a valid CAS Registry Number.
InChI:InChI=1/C12H8Cl2/c13-11-8-4-7-10(12(11)14)9-5-2-1-3-6-9/h1-8H

25512-42-9Upstream product

25512-42-9Downstream Products

25512-42-9Relevant articles and documents

Influence of combustion conditions on the PCDD/F-, PCB-, PCBz- and PAH- concentrations in the post-combustion chamber of a waste incineration pilot plant

Blumenstock,Zimmermann,Schramm,Kettrup

, p. 987 - 993 (2000)

Experiments at a pilot scale waste incinerator (0.5 MW thermal power) showed that the conditions in the postcombustion chamber (650-900°C) are strongly influencing the formation of chlorinated and non-chlorinated aromatics. Non-optimal combustion conditions resulted in increased concentrations of mono- to trichlorinated dibenzo-p-dioxins (PCDD), dibenzofurans (PCDF) and polycyclic aromatic hydrocarbons (PAH), while chlorinated benzenes (PCBz), polychlorinated biphenyls (PCB) and the higher chlorinated PCDD/F are only weakly affected or even decrease. The changes in concentration of the compounds investigated over a time span of hours gave hints on 'memory effects' in this combustion zone. For mono- and dichlorinated benzenes, a high correlation (r2 = 0.80) with the international toxicity equivalent (I-TEQ) value of PCDD/F was observed. As recently has been demonstrated, this correlation can be utilized for an indirect on-line measurement of the I-TEQ by a novel laser mass spectrometric technique (REMPI-TOFMS). (C) 2000 Elsevier Science Ltd.

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