2. Classification

2.1 according to specification the industrial nitrocellulose should contain at least 25% of wetting agents that water or alcohols are usually used as. SNC can provide nitrocellulose products containing different kinds of wetting agents such as water, ethanol, isopropanol, n-butanol, etc.

SNC also provides nitrocellulose chips, a flaky product from plasticized NC with (no less than) 18% of plasticizers, such as DBP, DOP, etc. after replacing the water in NC.

2.2 The nitrocellulose products can be classified into H-type and L-type based on their nitrogen content and, in turn, subdivided into different grades according to the viscosity in the standard NC Solution (see Products Specifications).

Features of H-type

It’s a tougher film.
Evaporate its solvents faster than L-type.
Be diluted easily with alcohols, aromatic and aliphatic solvents.
Possess more excellent mechanical performances.
Since it can be readily dissolved into esters solvents, H-type product is also called ester-soluble nitrocellulose.

Properties of L-type

Form a thermoplastic film. Dissolve into large amounts of alcohols (such as methanol or ethanol) with small amount of esters.
Be diluted easily by aromatic solvents.