日韩桃色精品,AV日韩网,国产女人精品免费网站,射久久久久久久,超碰97在线直播,思思热999re,久久大香蕉在线视频,国产视频九色在线,在线极品国产精品专区

化學(xué)配方數(shù)據(jù)庫(kù)
配方類型: INKS AND MARKING COMPOUNDS
配方說(shuō)明: Multicolor Carbon Paper (U.S. Patent 2,559,608)
配方組成: Victoria-Blue Base/4
Vegetable Oil/14
Oil Yellow BB/1.5
Microcrystalline Wax (M.P. 67C.)/4
Carnauba Wax/29
Cyclized Rubber/5
REd Lake C/14
Petrolatum/26
Malachite-Green Base/1.5
Lanolin/7
配制方法: Mix intimately.
The black ink thus obtained is coated on paper by one of the usual methods. On touching the black carbon copy with an aqueous solution of sodium hypochlorite at about 2% strength, blotting, and subsequent touching with dilute hydrochloric acid, the color of the copy changes gradually from black to a permanent red.

返回?cái)?shù)據(jù)庫(kù)查詢
QQ: 2241752642
微信二維碼
電話: 19906633110
磴口县| 阿克| 资源县| 永修县| 河间市| 三河市| 新乐市| 太湖县| 故城县| 城口县| 台山市| 梅河口市| 铁岭县| 饶阳县| 灵山县| 社旗县| 通州区| 彭州市| 临海市| 黄骅市| 杭州市| 镇平县| 西昌市| 柳河县| 无锡市| 宣武区| 台中县| 台中市| 永安市| 九龙县| 博客| 桃源县| 离岛区| 河南省| 长阳| 富平县| 山丹县| 内江市| 五大连池市| 荥阳市| 昆明市|