Ảnh hưởng của pH đến quá trình tổng hợp và tính chất của vật liệu

In Stock

Size Guide

$34.99 $29.99

Shipping and Returns Policy

Mar 18, 2004 ... Accurate experimental values for the free energies of hydration, or the free energies of solvation, of the H+, OH-, and H3O+ ions are of ... The ratio of the rate constants for the neutralization of H 3 O + by Cl − and the electron has been measured as 0.11 ± 0.03 over the temperature range 1800- ... Feb 1, 2025 ... Product ion distributions using H3O+ proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS): mechanisms, transmission effects, ... We first report an ionic liquid (IL) that consists of hydronium. (H3O+) ion encapsulated by 18–crown–6–ether (18C6) and an amide anion. Aug 14, 2020 ... This phenomenon is called the leveling effect: any species that is a stronger acid than the conjugate acid of water (H3O+) is leveled to the ... Apr 29, 2019 ... Compound identifiers: The protonated ion mass [M+H]+ is used as a leading identifier of trace gases even though in some cases it is not detected ... Feb 27, 2025 ... We present a method, using gas-chromatography pre-separation, for quantifying PIDs from PTR-MS measurements of nearly 100 VOCs of different functional types. Dec 6, 2012 ... The [OH-] x [H3O+] value always has to equal 1x10^-14? Specifically, why is there always some H+ or OH- left in very basic/acidic solutions? Oct 14, 2024 ... We present a method, using gas-chromatography pre-separation, for quantifying PIDs from PTR-MS measurements of nearly 100 VOCs of different functional types. Sep 28, 2020 ... All acidic aqueous solutions contain protonated water, known commonly as the hydronium ion (H 3 O + ). Brønsted acids release one or more of their protons ( ...
  • Next Day Delivery by USPS Find out more

    Order by 9pm (excludes Public holidays)

    $11.99

  • Express Delivery - 48 Hours Find out more

    Order by 9pm (excludes Public holidays)

    $9.99

  • Standard Delivery $6.99 Find out more

    Delivered within 3 - 7 days (excludes Public holidays).

  • Store Delivery $6.99 Find out more

    Delivered to your chosen store within 3-7 days

    Spend over $400 (excluding delivery charge) to get a $20 voucher to spend in-store
  • International Delivery Find out more

    International Delivery is available for this product. The cost and delivery time depend on the country.

You can now return your online order in a few easy steps. Select your preferred tracked returns service. We have print at home, paperless and collection options available.

You have 28 days to return your order from the date it’s delivered. Exclusions apply.

View our full Returns and Exchanges information.

Our extended Christmas returns policy runs from 28th October until 5th January 2025, all items purchased online during this time can be returned for a full refund.

No reviews yet. Only logged in customers who have purchased this product may leave a review.