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Which of the following has been used in the manufacture of non-inflammable photographic films?

1. Cellulose nitrate
2. Cellulose xanthate
3. cellulose perchlorate
4. Cellulose acetate

Correct answer: Cellulose acetate

Solution

Cellulose acetate is much less flammable than cellulose nitrate, so it was adopted for safety photographic films. The other listed derivatives are not the standard material used for non-inflammable film bases.

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