State the meta and para forms of phenylene diamine

Reference no: EM13196942

Both the meta and para forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phynelene diamine, and why is the ortho form of the diamine a hindering impurity that must be rigoursly removed before the production of Kevlar and Nomex.

Reference no: EM13196942

Questions Cloud

State pressure will the sample have if the volume changes : What pressure will the sample have if the volume changes to 268 mL while the temperature is increased to 815 K?

At which the distance bewtween the planes changes : Find the rate at which the distance bewtween the planes changes when the southbound plane is 31 km away from the airport and the westbound plane is 24 km from the airport.

What score must katie get on the fifth exam : exams in a math class. If her scores on the first four exams are 70, 68, 84, and 82, then answer the following questions.

Define the factors affect the resolution : Which of the following factors affect the resolution (separation) of two compounds: (A) nature of the stationary phase; (B) eluent composition; (C) amount of sorbent used; (D) color of compounds being separated?

State the meta and para forms of phenylene diamine : the meta and para forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phynelene diamine

Define the overall equilibrium involves ksp : The overall equilibrium involves Ksp, Ka3 of phosphoric acid and Kw. Construct the constant and show the three equations that apply.

State how many electrons are around the central atom : How many electrons are around the central atom in the expanded valence in I3-; where the 3 is subscript and the negative sign is superscript

State chemical propertied that are similar to magnesium : Aluminum has chemical propertied that are similar to magnesium. What observation might you expect with the addition of 6M HCl

User Account

All Pages