نتایج جستجو برای: phosphine gas

تعداد نتایج: 248418  

Journal: :Catalysts 2023

The furnace gas resulting from the electrothermal production of yellow phosphorus contains up to 95% CO, 2% O2, H2, and 0.3–4.0% impurities, including phosphine (PH3), (P4), hydrogen sulphide (H2S), which are characterized by flammability, explosion hazardousness, corrosiveness, high toxicity. presence toxic impurities does not allow use waste gases production, mainly composed valuable carbon m...

Journal: :medical laboratory journal 0
farshid fayyaz aja university of medical sciences, tehran, iran

abstract      background and objective: aluminum phosphide (alp) is a solid non-organic phosphide with dark gray or dark yellow crystals. it reacts with stomach acid after ingestion and causes phosphine gas to be released. it is thought that phosphine causes toxicity from enzymatic interference and may even lead to cell death. this study aimed to investigate the effects of poisoning with rice t...

Background: The utilization of pesticides like AlP has expanded in the current years and enhanced the amount and nature of horticultural items in various developing nations. Considering that in addiction research centers, many cases of suicide with rice tablet have been observed and various methods have been proposed for the treatment, it was decided to examine different methods and to finally ...

2013
Mei Fu Xiuxian Song Zhiming Yu Yun Liu

Phosphine, which is released continuously from sediment, can affect the eco-physiological strategies and molecular responses of phytoplankton. To examine the effects of phosphine on phosphorus uptake and utilization in Thalassiosira pseudonana, we examined the transcriptional level of the phosphate transporter gene (TpPHO) and the activity of alkaline phosphatase (AKP) in relation to supplement...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Matthew A Pasek Jacqueline M Sampson Zachary Atlas

The element phosphorus (P) controls growth in many ecosystems as the limiting nutrient, where it is broadly considered to reside as pentavalent P in phosphate minerals and organic esters. Exceptions to pentavalent P include phosphine--PH3--a trace atmospheric gas, and phosphite and hypophosphite, P anions that have been detected recently in lightning strikes, eutrophic lakes, geothermal springs...

2014
Clara Sousa-Silva Ahmed F. Al-Refaie Jonathan Tennyson Sergei N. Yurchenko

A comprehensive hot line list is calculated for PH3 in its ground electronic state. This line list, called SAlTY, contains almost 16.8 billion transitions between 7.5 million energy levels and it is suitable for simulating spectra up to temperatures of 1500 K. It covers wavelengths longer than 1 μm and includes all transitions to upper states with energies below hc × 18 000 cm−1 and rotational ...

Journal: Polyolefins Journal 2021

Organocatalysts have attracted enormous interest in the water-crosslinking reaction in silane-grafted polyolefins (SGPOs) system owing to their simplicity, low toxicity and environmentally benign nature compared to organotin catalysts, which are most used in SGPOs system. We focus on organophosphorus compounds including four structure types as organocatalysts; phosphoric acids, phosphoric ester...

2015
Zhaorigetu Chen David Schlipalius George Opit Bhadriraju Subramanyam Thomas W. Phillips

Stored product beetles that are resistant to the fumigant pesticide phosphine (hydrogen phosphide) gas have been reported for more than 40 years in many places worldwide. Traditionally, determination of phosphine resistance in stored product beetles is based on a discriminating dose bioassay that can take up to two weeks to evaluate. We developed a diagnostic cleaved amplified polymorphic seque...

2007
S. B. Charnley

Hot molecular cores in star-forming regions are known to have gas-phase chemical compositions determined by the material evaporated from the icy mantles of interstellar grains, followed by subsequent reactions in the gas phase. Current models suggest that the evaporated material is rich in hydrogenated species. In this paper we consider the chemistry induced in a hot core by the release of phos...

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