welinkschem

  Welinks Group (Zhangjiagang)Co., Ltd.is a holding subsidiary of LTH group, a state owned company Located in Xuyong city,Sichuan Province. The company is mainly engaged in the marketing of products produced by our parent company,such as BDO, NMP, N-pentane, NVP, PTMEG, PVP, TDI and THF. E-mail: sales@welinkschem.com Tel / Whatsapp: +86-13548175200 Web: https://www.welinkschem.com

  Why is Butylene Glycol More Toxic Than Propylene Glycol: Both  butylene glycol  and propylene glycol have certain toxicity. Although they will not cause direct harm to the human body, they can cause irritation and discomfort if they come into contact with the skin or eyes. Butylene glycol is widely used in industry, mainly in the manufacture of polyester resin and polyurethane. Polyester resin is an important engineering plastic that is widely used in the manufacture of automobiles, electrical appliances, building materials, etc. Polyurethane is a multifunctional material with excellent insulation, wear resistance and aging resistance. It is widely used in insulation materials, furniture, sports equipment and other fields. Butylene glycol is highly toxic. If you accidentally eat or inhale butylene glycol, it may cause serious harm to the human body and even be life-threatening. Therefore, when using butylene glycol and propylene glycol, operating procedures must be strictly followed

  The difference between   butylene glycol   and propylene glycol is as follows: Different uses: Butanediol is mainly used to make solvents, plastics, coatings, pigments, resins, fibers, etc. It can also be used to make softeners, refrigerant fluids, heat exchange fluids, etc. Propylene glycol is mainly used in the manufacture of coatings, resins, paints, fibers, etc. It can also be used in the manufacture of medicines, spices and food additives. Different water solubility: Butanediol has poor water solubility, its solubility in water is only 3.6%. Propylene glycol has better water solubility, and its solubility in water can reach 100%. Different melting points: The melting point of butanediol is relatively low, only -74°C. The melting point of propylene glycol is relatively high, -16.6°C. Differences in Toxicity: Butylene glycol is more toxic than propylene glycol. The LD50 value of butylene glycol is 1.5g/kg, while the LD50 value of propylene glycol is 5.6g/kg.

  This is Welinks's video of loading BDO. BDO (1.4-Butanediol) is a high-quality intermediate. 1.4-Butanediol and its derivatives are widely used for producing plastics, solvents, electronic chemicals and elastic fibers. 1,4-butanediol intermediate is a versatile diol precursor to numerous derivatives such as esters, carbamates, polyesters and urethanes. E-mail: sales@welinkschem.com Tel / Whatsapp: +86-13548175200 Web: https://www.welinkschem.com

  What kind of substance is THF? THF  is a chemical reagent of thorium fluoride.   Alias:  tetrahydrofuran , 1.4-epoxybutane, tetramethylene oxide, oxyheterocyclic pentane, monooxypentacyclic, tetrahydroxycyclocene, polytetramethylether glycol, tetramethylene oxide, oxyheterocyclic pentane, monooxyacyclic   CAS: 109-99-9 Molecular formula: C4H8O Molecular weight: 72.11 PSA 9.23000 LogP 0.79680 Merck 9211 Refractive index n20/D 1.40 Miscible Boiling point 65-67 ° C (l In industrial production, sugar aldehyde was first used as raw material. The mixture of sugar aldehyde and steam was introduced into the reactor filled with zinc chromium manganese metal oxide (or palladium) catalyst, and the carbonyl group was removed at 400-420 ℃ to form furan; Then tetrahydrofuran was prepared by hydrogenation of furan at 80-120 ℃ using skeleton nickel as catalyst. The production of 1 ton of tetrahydrofuran by this method requires about 3 tons of polysaccharide aldehyde. With excellent optical and mecha

  This is Welinks's video of loading BDO. BDO (1.4-Butanediol) is a high-quality intermediate. 1.4-Butanediol and its derivatives are widely used for producing plastics, solvents, electronic chemicals and elastic fibers. 1,4-butanediol intermediate is a versatile diol precursor to numerous derivatives such as esters, carbamates, polyesters and urethanes. E-mail: sales@welinkschem.com Tel / Whatsapp: +86-13548175200 Web: https://www.welinkschem.com

  What is Butylene Glycol? Is it Harmful to the Skin? Butylene glycol  is an organic compound that has moisturizing and antibacterial effects. It is often used as a moisturizer in cosmetics. Butylene glycol is a moisturizing ingredient that is often found in cosmetics. It can effectively absorb water molecules. After acting on the skin, it can help the skin retain moisture and reduce or avoid dry skin. And compared with glycerin, butylene glycol has a relatively smaller viscosity and will feel refreshing after use. In addition, butylene glycol also inhibits the growth of bacteria and other microorganisms, which is beneficial to the skin and reduces the occurrence of skin infections. If you are allergic to butylene glycol, you should avoid using cosmetics and related preparations containing butylene glycol to avoid allergic skin lesions such as itchy erythema and papules, and even skin diseases such as urticaria, eczema, contact dermatitis, etc., which are harmful to the body. of health

  This is Welinks's video of filling BDO. BDO (1.4-Butanediol) is a high-quality intermediate. 1.4-Butanediol and its derivatives are widely used for producing plastics, solvents, electronic chemicals and elastic fibers. 1,4-butanediol intermediate is a versatile diol precursor to numerous derivatives such as esters, carbamates, polyesters and urethanes. E-mail: sales@welinkschem.com Tel / Whatsapp: +86-13548175200 Web: https://www.welinkschem.com