久草视频在线这里只有精品,日韩一区二区三区不卡电影,欧美一区在线视频,四川女人毛多水多A片,av永久天堂一区二区三区

ID:  

PW:

FAX
+86-351-4080661
Phthalic anhydrideYou are here: Home - Chemical Category- Phthalic anhydride
Ⅰ Chemical Category ——Ⅱ Coal Chemical Category  ——Ⅲ Adhesive Category  ——Ⅴ Water Treatment Category

Phthalic anhydride
Author: Tianhe chemical sources: original date:2012-04-11

Product name: Phthalic anhydride (Abbreviation: PA)

Molecular formula: C8H4O3

Molecular weight: 148.12

Appearance: White acicular crystal, specific gravity 1.527 (4℃).

Melting point 130.8℃, boiling point 284.5℃, easily sublimated, slightly soluble in water, easily soluble in hot water and hydrolyzed to phthalic acid, soluble in ethanol, benzene and pyridine, slightly soluble in ether.

Packing: Woven bag lined with plastic, 25kg/bag.

Storage and transportation: Stored in dry and ventilated warehouse. Avoid fire, moisture, sunlight and rain. Keep the integrity of packaging. Wear protective equipments in handling. Do not contact with skin and inhale.

Storage period: Within three months from the date of production.


[ Back ]

qq在線客服1
襄汾县| 锦州市| 宁德市| 灯塔市| 吴江市| 蒙山县| 华阴市| 洪雅县| 蓬安县| 彭水| 梁河县| 金溪县| 崇义县| 邵武市| 临沂市| 三江| 和龙市| 元谋县| 门头沟区| 汕头市| 辽宁省| 鄢陵县| 海城市| 信丰县| 临清市| 琼结县| 灵台县| 永春县| 成安县| 新安县| 红桥区| 溧水县| 册亨县| 安康市| 洛阳市| 丽江市| 灵璧县| 北川| 尉犁县| 杨浦区| 乌拉特前旗|