Glue in paper (qualitative and quantitative determination)
Language: English
Product Type: Digital
Provider: TAPPI
Shipping: Available for download - Link will be provided in My ComplianceOnline section
This method deals with the qualitative and quantitative determination of animal glue in paper in quantities that are used for sizing high grade papers (1). It is applicable to glue hardened with formaldehyde, alum, or amino-formaldehyde resins, and to photographic papers. This method can also be used in the determination of gelatin (a more highly refined form of animal protein).
The method is based on the color reaction of Ehrlich's reagent (p-dimethyl-aminobenzaldehyde) with hydroxyproline, one of the amino acids derived from collagen. It is specific for glue and gelatin; other nitrogenous materials do not interfere.
Two qualitative procedures are given, which are essentially the same: a macromethod where at least 100 mm2 of paper is available and a micromethod where only 10 mm2 can be used.
The scope of the quantitative procedure is given in 3.1.
NOTE 1: Safety precautions - This method requires the use of hazardous chemicals. Please refer to specific Material Safety Data Sheets for personal protective equipment, safe handling precautions, and disposal requirements.
Customers Also Bought
- Generalized Method for Determining the Pipe Friction Loss of Flowing Pulp Suspensions
Price: $53 BUY NOW - Optimum consistency for pumping pulp
Price: $53 BUY NOW - Typical task time values - pulpwood handling
Price: $35 BUY NOW - Design Engineer Decisions Tree: Paper Mill Boiler Feedwater
Price: $53 BUY NOW - EVALUATING REVERSE OSMOSIS FOR TREATING MAKEUP TO THE BOILER FEEDWATER IN A PULP AND PAPER MILL
Price: $35 BUY NOW - Stripping of kraft pulping process condensates: regulations, design and operation
Price: $49 BUY NOW







