Glyoxal 40% is an organic compound with the chemical formula OCHCHO. It is the smallest dialdehyde (a compound with two aldehyde groups). Pure glyoxal is not commonly encountered because glyoxal is usually handled as a 40% aqueous solution.
What is material of Glyoxal 40% ?
Glyoxal 40% produce method is mainly Ethylene glycol gas phase oxidation method on market.
The main material is Ethylene glycol. Ethylene glycol includes origin petroleum and coal. Corresponding, it has petroleum and coal grade glyoxal 40%.
Huashihang Chemical buys petroleum grade Ethylene glycol from Zhangjiagang Free Trade Zone whose origin is Middle East. At present, China imported Ethylene glycol are from three places includes Zhangjiagang Free Trade Zone, Fujian and Dongguan. Our old plant is in Yangzhou, which is 140KM to Zhangjiagang City.
Below is the price of Ethylene glycol from three place on June 5th, 2023.
The origins of coal grade Ethylene glycol in China are mainly Hubei, Shanxi, which are far from our plants. However, other players near China coal grade Ethylene glycol places usually choose half or 2/3 coal grade Ethylene glycol as material. They use coal grade Ethylene glycol to produce glyoxylic acid 50% and its downstream products. That is also why our glyoxylic acid 50% with lower Fe less than 15PPM but others at least 50-100PPM. Glyoxylic acid 50% with higher Fe or heavy metals is not friendly to hair care products, micro element, or electronic component cleaning agents.
How to ensure Glyoxal produce and transport ?
We have many storage tanks in plant, which always ensure full stock. Ethylene glycol is delivery by specialized tank car, which makes zero pollute changing the quality of Ethylene glycol. QC test Ethylene glycol until tank car reaches plant. Once quality approves, workers start unloading Ethylene glycol in tanks.
Glyoxal 40% produce by Huashihang Chemical is DCS and SIS system. Comparing other players needs recorrect parameters, we set production parameters of glyoxal 40% well before feeding materials and no changed until finishing producing.
Glyoxal 40% producing by Huashihang Chemical Group has none waste water and gas. Because it also has formaldehyde producing lines near Glyoxal 40% plant work place. In formaldehyde producing, it has one mix gas. Such mix gas components are CO and H2. It is same component with natural gas. We always use such mix gas to heat reaction kettles. Also the ‘wast gas’ in glyoxal 40% producing reuse in formaldehyde producing, it makes our glyoxal 40% zero carbon emission. And the water in glyoxal 40% producing is steam,which becomes pure water via condenser and is recycled.
We have own tank cars for Glyoxal 40%, which mainly satisfies inland customers needs. The old plant is 230KM to Pudong, Shanghai City. It makes the transport cost is lower and fast delivery time. For normal grade Glyoxal 40%, the price by Huashihang Chemical Group is lower than around 1/10 comparing others.
Glyoxal 40% advantages on specifications by Huashihang Chemical ?
Huashihang Chemical is only manufacturer who controls ethylene glycol 1.5%max and total acidity 0.15%max for Glyoxal 40%. Below is Glyoxal 40%(1000PPM max) specifications.
Glyoxal ≥40%
Glycol ≤1.5%
Total Acidity ≤0.15%
Chroma Pt-Co (APHA) ≤15
Formaldehyde ≤1000PPPM
Density 1.267-1.275
PH 1.6-3.5
