trate with alcoholic potash, 1 c.c. normal |
| KHO = .330 grm. _resin_, and add considerably more KHO. Evaporate, |
| dissolve residue in water, shake with ether, and separate. |
|_______________________________________________________________________|
| |
| _Ethereal Solution_ evaporated leaves paraffin. |
|_______________________________________________________________________|
| |
| _Aqueous Solution_-- |
| Add bromide, acidify with HCl, separate any resin and precipitate, |
| filtrate with BaCl_{2} BaSO_{4} x .1373 = Sulphur. |
|_______________________________________________________________________|
| |
| _Residue_-- |
| Dry, weigh, and exhaust with water preferably in Soxhlet. |
|_______________________________________________________________________|
| | |
| _Solution_-- | _Residue_-- |
| Contains metallic | Dry, weigh, and agitate an aliquot part with |
| nitrates, chlorates, | with H_{2}SO_{4} and Hg in nitrometer. If |
| soluble carbonates, | nitro-cellulose is present, treat remainder of |
| the sum of which | residue with ether-alcohol. |
| (except AmCO_{3}) |________________________________________________|
| can be determined by | |
| evaporating down at | _Solution_-- |
| 100 deg. C. to dryness | Evaporate and weigh. Residue consists of |
| and weighing. | soluble nitro-cellulose. |
| Nitrates can be |________________________________________________|
| determined by | |
| | _Residue_-- |
| | Dry and weigh and determine hexa-nitro- |
| | cellulose in nitrometer, if present. Exhaust |
| | remainder with acetic ether. |
| |__________________________