Nitroglycerine C_{3}H_{5}(ONO_{2})_{3} 18.50 = 60.70 Hexa-nitro-cellulose C_{12}H_{14}O_{4}(ONO_{2})_{6} 14.14 = 46.42 Penta-nitro-cellulose C_{6}H_{8}O_{5}(ONO_{2})_{5} 11.11 = 36.50 Nitro-benzene C_{6}H_{5}NO_{2} 11.38 = 37.39 Di-nitro-benzene C_{6}H_{4}(NO_{2})_{2} 16.67 = 54.77 Tri-nitro-benzene C_{6}H_{3}(NO_{2})_{3} 19.24 = 63.22 Nitro-toluene C_{7}H_{7}NO_{2} 10.21 = 33.49 Nitro-naphthalene C_{10}H_{7}NO_{2} 8.09 = 26.53 Di-nitro-naphthalene C_{10}H_{6}(NO_{2})_{2} 12.84 = 42.12 Nitro-mannite C_{6}H_{7}(NO_{3})_{6} 23.59 = 77.37 Nitro-starch C_{6}H_{8}O_{4}(HNO_{3}) 6.76 = 22.18 Picric acid (Tri-nitro-phenol) C_{6}H_{2}OH(NO_{2})_{3} 18.34 = 60.15 Chloro-nitro-benzene C_{6}H_{3}Cl(NO_{2})_{2} 13.82 = 45.43 Ammonium nitrate NH_{4}NO_{3} 35.00 = Sodium nitrate NaNO_{3} 16.47 = Potassium nitrate KNO_{3} 13.86 = Nitric acid HNO_{3} 22.22 = Barium nitrate Ba(NO_{3})_{2} 10.72 = ~Analysis of Celluloid.~--The finely divided celluloid is well stirred, by means of a platinum wire, with concentrated sulphuric acid in the cup of a Lunge nitrometer, and when dissolved the nitrogen determined in the solution in the usual way. To prevent interference from camphor, the following treatment is suggested by H. Zaunschirm (_Chem. Zeit._, xiv., 905). Dissolve a weighed quantity of the celluloid in a mixture of ether- alcohol, mixed with a weighed quantity of washed and ignited asbestos, or pumice-stone, dry, and disintegrate the mass, and afterwards extract the camphor with chloroform, dry, and weigh: then extract with absolute methyl-alcohol, evaporate, weigh, and examine the nitro-cellulose in the nitrometer.