新戊二醇（NPG），白色结晶固体，无味，吸湿。主要用于生产不饱和树脂，无油醇酸树脂，聚氨酯泡沫塑料和增塑剂，表面活性剂，绝缘材料，印刷油墨，阻聚剂，合成航空润滑油添加剂等。下面氢氧化钾厂家为您讲解下新戊二醇的合成及注意事项。

Neopentyl glycol (NPG), white crystalline solid, odorless, hygroscopic. It is mainly used to produce unsaturated resin, oil-free alkyd resin, polyurethane foam and plasticizer, surfactant, insulating material, printing ink, polymerization inhibitor, synthetic aviation lubricant additive, etc. Below, the potassium hydroxide manufacturer will explain to you the synthesis and precautions of neopentyl glycol.

新戊二醇合成法：

Synthesis method of neopentyl glycol:

1.甲酸钠法将异丁醛和甲醛在30-35℃，pH值为9-11的条件下在碱性催化剂存在下缩合形成羟基-叔丁醛和过量的甲醛。被氧化并与碱反应形成甲酸钠。用甲酸中和反应溶液，并在减压下蒸馏和脱水。将浓缩的溶液进行分层萃取以去除甲酸钠，然后冷却，结晶并分离以获得终产物。

1. The sodium formate method condenses isobutyraldehyde and formaldehyde at 30-35 ℃ and pH 9-11 in the presence of an alkaline catalyst to form hydroxy-tert-butyraldehyde and excess formaldehyde. It is oxidized and reacts with alkali to form sodium formate. Neutralize the reaction solution with formic acid, and distill and dehydrate under reduced pressure. The concentrated solution is subjected to layered extraction to remove sodium formate, followed by cooling, crystallization, and separation to obtain the final product.

2.加氢方法：将异丁醛和甲醛缩合，得到羟基新戊醛，其通过加氢还原而获得。

2. Hydrogenation method: Condensate isobutyraldehyde with formaldehyde to obtain hydroxy neoglutaraldehyde, which is obtained through hydrogenation reduction.

新戊二醇注意事项：

Precautions for Neopentyl Glycol:

1.存放期间保持包装完好。应与氧化剂和食用化学品分开存放。使用防爆照明和通风设施。禁止使用易产生火花的机械和工具。储存区域应配备泄漏应急处理设备和合适的容纳材料。请勿将其暴露于明火中。应保持通风干燥，以防日晒。储存温度为-50℃45℃。

1. Keep the packaging intact during storage. It should be stored separately from oxidants and edible chemicals. Use explosion-proof lighting and ventilation facilities. Prohibit the use of machinery and tools that are prone to sparks. The storage area should be equipped with leakage emergency response equipment and suitable containment materials. Do not expose it to open flames. Ventilation and dryness should be maintained to prevent sun exposure. The storage temperature is -50 ℃ and 45 ℃.

2.在运行过程中，要进行密闭操作以增强通风。

2. During operation, enclosed operations should be carried out to enhance ventilation.

操作员戴上化学防护眼镜，穿上防毒渗透工作服，并戴上橡胶耐油手套。在工作场所远离火源，热源和吸烟。使用防爆通风系统和设备。防止蒸气泄漏到工作场所的空气中。避免与氧化剂接触。包装时，注意防止静电积聚，并有接地装置。处理时请小心处理，以免损坏包装。配备了相应品种和数量的消防设备和泄漏应急处理设备。

The operator should wear chemical safety goggles, gas permeation resistant work clothes, and rubber oil resistant gloves. Stay away from sources of ignition, heat, and smoking in the workplace. Use explosion-proof ventilation systems and equipment. Prevent vapor leakage into the air of the workplace. Avoid contact with oxidants. When packaging, pay attention to preventing the accumulation of static electricity and have a grounding device. Please handle with caution to avoid damaging the packaging. Equipped with corresponding types and quantities of firefighting equipment and leakage emergency response equipment.

同时，新戊二醇也是一种非常好的溶剂，可用于芳香烃和环烷基烃的选择性分离。氨基烤漆具有良好的保光性，不会发黄；它也可以用作生产稳定剂和杀虫剂的原料。您有需求就来我们网站http://www.jinhao360.com咨询吧！

Meanwhile, neopentyl glycol is also a very good solvent that can be used for selective separation of aromatic hydrocarbons and cycloalkanes. Amino baking paint has good light retention and will not turn yellow; It can also be used as a raw material for producing stabilizers and insecticides. Come to our website if you have any needs http://www.jinhao360.com Consult!