生物来源
wood (pulp)
质量水平
形式
powder
颜色
light yellow
有效pH范围
(20 °C, 10 g/L, 68 °F neutral)
粘度
1500-3000 cP, 1 % in H2O(25 °C)(lit.)
mp
> 300.05 °C ((> 572.09 °F ))
溶解性
H2O: 10 mg/mL
痕量阳离子
Na: 6.5-9.5%
储存温度
room temp
InChI
1S/C6H12O6.C2H4O2.Na/c7-1-3(9)5(11)6(12)4(10)2-8;1-2(3)4;/h1,3-6,8-12H,2H2;1H3,(H,3,4);
InChI key
DPXJVFZANSGRMM-UHFFFAOYSA-N
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一般描述
本品为高粘度羧甲基纤维素（CMC）; 1％水溶液在25 oC下的粘度为1500-3000厘泊（cps）。粘度与浓度和温度有关。随着温度的增加，粘度降低。随着浓度的增加，粘度增加。低、中、高粘度的CMC都可用作悬浮剂。低粘度CMC通常用于“稀”水溶液中。 中粘度CMC用于制备看起来像糖浆的溶液。 高粘度CMC用于制备类似乳膏或乳液的混合物。
应用
具有不同粘度的可溶性羧甲基纤维素（CM-纤维素；CMC）可用作粘度改进剂（增稠剂）以稳定乳液，并可用作油和其他碳结构（如纳米管）的化学分散剂。CMC可用于开发例如生物膜、乳液和用于药物递送的纳米颗粒等生物结构。 高粘度的羧甲基纤维素可用于实现乳膏或乳液溶液的稠度。
制备说明
该产品可溶于水（10mg/ml）。溶解羧甲基纤维素的关键是将固体小心地加入水中，使其充分的分散（充分润湿）。该过程可能需要分批添加固体。 向干燥的固体中加水会产生难以溶解的固体“团块”；必须将固体加入水中。轻轻搅拌或间歇摇动；不要适用磁力搅拌棒不断搅拌。不需要在高温下溶解，事实上高温可能会减慢溶解过程。混合装置，例如产生涡流的叶轮型搅拌器，可帮助粉末混入液体中，但是其可能会产生一些剪切效应。注意，这种高粘度CMC通常以低于20mg/ml的浓度使用，但它在水中的溶解度可高达50mg/ml；需要加热以制备50mg/ml溶液。
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
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