Chemist Jobs

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Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I have several simple dye synthesis for you to review and comment for safety and practicality. The dyes are mostly anthraquinone dyes, and the basics of the synthesis methodology is mostly described in expired patents. The precursors are mostly stock precursors with CAS numbers. The synthesis methods are mostly simple 1 and 2 step methods. The precursor chemicals have a significant cost, which is why we want you to review them first. The next project will be to actually synthesize the dyes, with another freelancer project.
Skills: Chemistry
Fixed-Price - Expert ($$$) - Est. Budget: $350 - Posted
I need a trustworthy, dedicated and an expert to someone help in developing and testing a formula for a project (its IP that is already patent and owned). If there's another formula or technology that needs to be implemented, please specify. All components must be included The research embodied in the following report has the ultimate purpose of finding or developing a formula/technology that will allow a pair of patent leather shoes to change color according to the following guidelines: 1. Change color between red and pink with a microfiber cloth.(the heat from the rubbing of the shoe will induce the heat to trigger the color)? 2. The shoe needs to stay in the new color for 24 hours if possible. 3. Rain or sun should not affect shoe color. 4. Formula needs to work in patent leather and should not affect gloss. 5. No hazardous components should be used to attain the 24 threshold. 6. Test the formula to see if it can change other materials/fabric ( e.g. cotton, synthetic, etc..) Please note, must of the work have already been conducted. Information will be shared after a NDA is signed. The biggest thing is finding a component/technology that will allow the color to stay for 24 hours. Budget is negotiable
Skills: Biotechnology Chemical Engineering Chemistry COSMO-RS Chemical Engineering Engineering Design Product Development
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Looking for a chemist/consultant with expertise in the cosmetic/skincare/polymer/color industries. I am looking to develop 4 separate products that will require extensive knowledge of 1) hair growth/removal 2) silicone/polymer chemistry 3) skincare (acne) 4) oligomers/polymerization Happy to elaborate further if you think you are up for a challenging task in developing products that do not yet exist.
Skills: Biology Chemistry Manufacturing
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
We are looking for a Cosmetic Chemist / Formulation Specialist to assist to developing various products in the personal care / skin care space.
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Hi, We require feedback on foods we would like to analyse such as structure (saturated fat content for example), potency (vitamins or supplements), oxidation levels, presence of heavy metals and more. Please advise on your skills, experience, lab access, tools and feedback you're able to provide. Thanks
Skills: Biology Chemistry