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；同时，新戊二醇也是一种好的溶剂，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。

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 materials, printing ink, polymerization inhibitor, synthetic aviation lubricant additives, etc; At the same time, neopentyl glycol is also a good solvent, which can be used for the selective separation of aromatic hydrocarbons and naphthenic hydrocarbons. Amino baking varnish has good light retention and will not turn yellow; It can also be used as a raw material for the production of stabilizers and pesticides.

新戊二醇合成法：

Synthesis 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. Sodium formate method condenses isobutyraldehyde and formaldehyde at 30-35 ℃ and pH value 9-11 in the presence of basic 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 extracted in layers to remove sodium formate, then cooled, crystallized and separated 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: condensation of isobutyraldehyde and formaldehyde to obtain hydroxyneovaleraldehyde, which is obtained by 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. It is forbidden to use machinery and tools that are easy to produce sparks. The storage area shall be equipped with leakage emergency treatment equipment and suitable accommodation materials. Do not expose it to open fire. Keep ventilated and dry to prevent the sun. 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, airtight operation shall 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。更多相关事项就来我们网站http://www.jinhao360.com咨询吧！

The operator shall wear chemical safety goggles, anti-gas penetration work clothes and rubber oil-resistant gloves. Keep away from fire, heat and smoking in the workplace. Use explosion-proof ventilation system and equipment. Prevent steam from leaking into the air of the workplace. Avoid contact with oxidants. When packaging, pay attention to prevent the accumulation of static electricity, and have a grounding device. Please handle with care to avoid damaging the package. It is equipped with fire fighting equipment and leakage emergency treatment equipment of corresponding variety and quantity. Come to our website for more relevant matters http://www.jinhao360.com Ask!