Ammonium chloride stain

Identification Place a drop of a saturated solution of sample into a micro test tube, and add a drop of a 0.5% solution of ammonium chloride and several milligrams of zinc powder. Cover the mouth of the tube with a disk of filter paper moistened with a solution of 5% p-dimethylaminobenzaldehyde and 20% trichloroacetic acid in hexane. Heat with a small flame for about 1 min. A pink to red-violet stain appears on the paper. 

Octyl-1-decanol PEG-5 stearyl ammonium chloride Pentylene glycol cosmetic stain, suntan lotion Dihydroxyacetone cosmetic tonics additive Butcherbroom (Ruscus aculeatus) extract cosmetics... 

There are several drawbacks to use of softeners. Repeated use of softeners may cause reduced water absorbency of garments (particularly with distearyl dimethyl ammonium chloride). Softeners may also reduce the effectiveness of anionic fluorescent brighteners [2]. They may impart a greasy feel, and may stain fabrics when overdosed or too thick. Softeners can also reduce the effectiveness of flame retardancy agents on fabrics. 

Procedure. The test is conducted in a micro test tube fixed in an asbestos board support. A small amount of the sample or the evaporation residue firom a drop of the test solution is mixed with mercuriamide chloride or with a mixture of mercuric oxide and ammonium chloride. The open end of the test tube is covered with a disk of filter paper moistened with the reagent solution. The heating is begun at the upper end of the test tube and moved downward. A blue stain appears on the paper if the response is positive. 

Fig. 4. — Monitoring of the Multiple Molecular Forms of Tomato Pectinesterase by Starch-gel Electrophoresis.98 [ENZ, detection of pectinesterase activity by paper print with pectin and Bromothymol Blue PROT, protein staining with nigrosin O, origin. Key A, 1 crude tomato extract after ammonium sulfate salting-out, and dialysis 2 pectinesterase fraction from column of DEAE-Sephadex A-50 3 and 4 pectinesterase fractions from column of Sephadex G-75. B, Two parts of the same gel after horizontal slicing 1, 500 fig of the isolated form of pectinesterase from a column of CM-Seph-adex C-50 with 175 mM phosphate-sodium chloride buffer 2, active fraction at 150 mM buffer 4 and 5, 250 fig and 1 mg of the isolated form of pectinesterase, respectively.]...

The authors are only aware of one other study where conventional TEM was used to image ion-rich domains in ionomers. Huang et al. observe features interpreted as ion-rich domains in negatively stained poly(dimethyl siloxane) ionomers with pendant quaternary ammonium groups neutralized with chloride anions (Fig. 3). " Here, one does, however, have to... 

Didecyldimethylammonium chloride is used to prevent stain and mildew on freshly cut lumber81 If a quaternary ammonium salt monomer could be impregnated into wood, then graft polymerized to it, the process might displace some of the chromium copper arsenate treatments. Some antibacterial polymers (e.g., 4.9) work by gradual hydrolysis to release the active group.82... 

A13-52862 Ammonium, (6-(dimelhylamino)-3H-xanten-3-ylidene)dimelhyl-. chloride 3,6-Bls(dimethylamino)-xanthylium chloride C.l. 45005 EINECS 202-147-8 Methyl pyronin NSC 10454 Pyronin G Pyronin Y Pyronin Yellow Pyronine Pyronine 6 Pyronine Y Pyronine ZH Schultz No. 853 Tetramethyl pyronin Xanthylium, 3,6-bis(dimethylamino)-, chloride. Used in the dyestuffs industry. With ferric chloride, gives a green complex which is used as a bacteriological and biological stain. Soluble in H2O (9 g/100 ml). EtOH Xm - 576 nm. Allchem Ind. Enrique Silvestrini y C/a Oliver Y Bailie. 

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