a. wealthy toothpaste grade cmc features
1.good rheological property and thixotropic property.
2. acid resistance: ph 2-4.
3.salt resistance: the addition of salt will not decrease but rather increases the viscosity of cmc aqueous solution
4.thermal resistance.
5. high transparency.
6 .antibacterial.
b. cmc’s function in toothpaste
1. good compatibility, can be mixed with various ingredients of toothpaste .
2 .good thickening effect, helps retain extrusion set.
3. fine and glossy of toothpaste, no dehydration, no de-cladding .
4. good stability, suitable thickness; can offer toothpaste special comfortable mouthfeel and gloss.
toothpast grade cmc:th9、th10、th12、t500, special grade could be developed according to customer’s request.
with improvement of people’s living standard, the requirements of daily necessities is also increasing constantly.
as a kind of daily necessity, toothpaste’s use value is not limited to mouth cleaning. it gradually becomes more functional and healthy.
there are many new types of toothpaste like: medicinal toothpaste, anticalculus toothpaste, anti-inflammatory and blood staunching toothpaste and complete care toothpaste,which raise new requirement of cmc, the main ingredient of toothpaste.
description |
white or cream colored powder |
viscosity (1%solution, 25°c) |
800~1200cps |
ph value (1%solution, 25°c) |
6.0~8.5 |
purity (dry basis) |
99.5% |
bulk density |
0.55-0.7 |
degree of substitute |
0.80min |
loss on drying |
≤8.0% |
particle size |
min.99.0% pass through 40 mesh (420 micron) min.95.0% pass through 60 mesh (250 micron)
|
heavy metals |
≤10ppm |
arsenic(as) |
≤ 3ppm |
lead |
≤ 3ppm |
mercury |
≤ 1ppm |
cadmium |
≤ 1ppm |
microbacteria |
|
total plate count |
<1000 cfu/g |
yeast and mould |
<100 cfu/g |
coliform |
absent/g |
salmonella |
absent/g |