Where can I buy water soluble non-toxic surfactant for laboratory use that has an exact chemical structure?

27 July 2023 1 4K Report

Exact chemical structure means exact molar mass and not average molar mass of some kind mixture of homologs. So the Tween and Span series are not good.

Chen Jingwen

Hello Adam,

You may buy it online. You may make an inquiry at Alfa Chemistry, they offer kinds of good-quality surfactants.

https://www.alfa-chemistry.com/inquiry

Badges
Science topic

More Adam Juhasz's questions See All

Phengaris rebeli on Picea abies?

Today I took this video in Southern Bavaria, Germany. Video: https://www.youtube.com/watch?v=cCy1eLM6aE0 A female Maculinea rebeli was continuously tapping the leaves of Picea abies with its...

15 July 2024 8,099 4 View

Please tell me the scientific guidelines (books) on Trombidiformes ticks?

books and scientific papers on the morphology, taxonomy and so on of ticks of the suborder Trombidiformes

17 June 2024 948 2 View

Do plants produce hormones that have the same influence properties of animal hormones?

I know that all animals and insects produces hormones. Do plants produce hormones that can have an equivalent effect on an animal like animal hormones?

13 June 2024 3,860 1 View

Micelle vs liposome?

I hope we will not need to reinvent the wheel. Quick (maybe not very smart) question: How do you distinguish between these tw particles? Any proposed technique will definitely provide the answer....

21 May 2024 9,073 5 View

Why there is a increase in participants in road running events?

There is a huge demand for road running events such as marathons in past couple of years. why?

01 May 2024 3,612 0 View

Which of the following proliferation-tracing dyes perform the best?

I'm designing a cytotoxicity assay to measure the effect of treatment on proliferation. My specific objective is to compare the number of cells with 1 and 2 divisions in treated cultures to...

24 April 2024 2,566 0 View

Cointegration in case of the mixture of I(0) and I(1) stationary variables?

Hi! I want to use the ADL model for my data analysis. However, after performing a stationary test, dependent and 6/8 independent variables are stationary only in differences. The other two are...

23 April 2024 9,017 3 View

"Abaqus/standard analysis exited with an error". Is there a solution?

Hello, I am currently trying to run a simulation for my research using abaqus. I have installed abaqus 2022 version and also followed the required steps to link abaqus with intel fortran. I have...

15 April 2024 3,123 1 View

What is the procedure for implementing the DDMRP methodology on SAP S/4HANA and how to do it?

i'm an intern and this is what i'm suposed to do

15 April 2024 6,048 0 View

Dear scholars, could you please share with me free resources (e.g., Online courses and text books) about mulitilevel Linear Modeling?

Any kind of resources.

11 April 2024 9,293 0 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

Project/Experimental assistance ？?

Do experiments on behalf of Our Business: Laboratory animal rearing Animal modeling Experimental animal behavior detection, image ultrasonic detection, electrophysiology platform Organoid...

05 August 2024 5,829 1 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

Why is nonpoint source pollution potentially more harmful and difference between point and nonpoint sources of water pollution?

01 August 2024 1,180 2 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How do living organisms play a role in the water cycle and why is nonpoint source pollution potentially more harmful than point source pollution?

01 August 2024 7,061 2 View

The use of data from PubChem for commercial purposes?

Hi, I'm curious to know if data on chemical compounds from PubChem, such as water solubility properties, can be used to train a machine learning model for commercial purposes. Will this infringe...

30 July 2024 8,707 1 View