I have masking tape residue on multiple sections of our colored concrete. I have tried everything from pressure washing, to goo-gone, mineral oil, citrus oils, lacquer thinner, to gasoline. I stopped short of oxacilic... Can apple cider vinegar be diluted with oil rather than water? And if yes what ratio of ACV to oil would be required at minimum to be Considered safe for application to the face? Here is a website about Tris (2-Amino-2-hydroxymethyl-propane-1,3-diol | C4H11NO3 - PubChem). It mentions that Tris is soluble in water. I want to know what are the resulting product when Tris is dissolved in wat... I recall reading that used (water saturated) sodium polyacrylate is re-usable. That the water could evaporate, leaving the crystals behind. And that even an over, or microwave oven can speed the evaporatio... My professor gave an example for atomic weight that was: Cl-35=75.77% and Cl-37=24.23% and said that the atomic weight of Cl was 35.5 amu. Is this correct? I got a different answer. Please show steps if possible. I notice when I do the dishes or clean the kitchen or bathroom that my fingers and cuticles and beneath my nails turn black, almost like blackberry staining, except it just seems to be in the skin grooves. I look like... What happens to odor (VOCs) molecules after they disperse? We were told to move everything online about 2/3 of the way through the semester. Our faculty pulled together and were able to develop online offerings for the remainder of the semester. There have certain... I was outside the other day standing alongside my house shielded by the wind when from out of nowhere a faint smell passed by. I have no idea where it came from or what generated it. Did not smell like nature. I assum... Is there anyone here who has implemented an accessible design in a clean-room laboratory that uses strong acids? I would be really interested in connecting with you to talk about how this was implemented. ... I study the degradation of this textile dye for this I need its chemical formula (marine bemacron SE-RLX, dispersed), in order to explain the chemical reactions during my study. the company in Algeria does not have a ... First I would like to thank Steven Cooke for his response last evening to my below query... "Could someone suggest an inexpensive substitute for alcohol to be added to water in a float/sink separation tank to ... Hi there, I have a question about storing a solution comprised of 1 part hydrofluoric acid (technical grade, 70 percent), 2 parts nitric acid (40 degree Baume minimum), and 3 parts water. I've seen... I work in the office of a plating company and have noticed that the chloride in our acid copper baths decreases in our barrel lines but increases in our strip lines (rack plating). This occurs despite the added water ... Hello ACS! I was just wondering if it was possible for anyone to specify what reaction conditions are required for the reaction between H2CO3 (Carbonic Acid) and NaCl (Sodium chloride)? Does this react... Hello ACS, I truly hope you are all safe and well! My question has to do with the following reaction: H2CO3 + 2NaCl => Na2CO3 + 2HCl It would be wonderful if anyone could start by co... Lithium Chloride is a very hygroscopic material and it is strongly believed that it had absorbed moisture which led to low assay result (98%). On the monograph, it does not say the assay is calculated on dried ba... Many universities are employing protective measures of 6-foot distancing with only a recommendation of a face-covering. How much can the distance be safely decreased when everyone is wearing a cloth face coverin... The phosphorus complex I’m considering using is marketed as a supplement. Phospholipid Complex 8oz PC5200 The reason I am looking into this is that when formulating a hair conditioner using ... What's the valence of Oxygen ? Is it 6 or 2 ? My professor insists it is 6 but I have read that it is 2.