ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗ ꯀꯥꯔꯕꯣꯟ ꯃꯣꯅꯣꯛꯁꯥꯏꯗ ꯀꯞꯂꯤꯡ ꯃꯦꯊꯗ꯫

ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗ ꯀꯥꯔꯕꯣꯟ ꯃꯣꯅꯣꯛꯁꯥꯏꯗ ꯀꯞꯂꯤꯡ ꯃꯦꯊꯗ꯫
ꯃꯁꯤꯒꯤ ꯄꯥꯝꯕꯩ ꯑꯁꯤꯅꯥ ꯑꯍꯥꯅꯕꯗꯥ ꯄꯦꯂꯦꯗꯤꯌꯝ ꯑꯃꯁꯨꯡ ꯀꯄꯥꯔ ꯁꯣꯜꯇꯁꯤꯡ ꯑꯁꯤ ꯀꯦꯇꯥꯂꯤꯁ꯭ꯠ ꯑꯣꯏꯅꯥ ꯁꯤꯖꯤꯟꯅꯈꯤ, ꯑꯃꯁꯨꯡ ꯀꯥꯔꯕꯣꯟ ꯃꯣꯅꯣꯛꯁꯥꯏꯗ, ꯑꯣꯛꯁꯤꯖꯦꯟ, ꯑꯂꯀꯣꯍꯣꯜ, ꯑꯃꯁꯨꯡ ꯗꯤꯜꯌꯨꯠ ꯅꯥꯏꯠꯔꯤꯛ ꯑꯦꯁꯤꯗꯀꯤ ꯂꯤꯛꯌꯨꯏꯗ-ꯐꯦꯖ ꯀꯞꯂꯤꯡ ꯔꯤꯑꯦꯛꯁꯟ ꯑꯃꯥ ꯸–꯱꯱ ꯑꯦꯝ.ꯄꯤ.ꯑꯦ. ꯑꯃꯁꯨꯡ ꯹꯰–꯱꯰꯰ °Cꯗꯥ ꯄꯥꯡꯊꯣꯀꯈꯤ꯫ ꯔꯤꯑꯦꯛꯁꯟ ꯑꯁꯤꯅꯥ ꯑꯍꯥꯅꯕꯗꯥ ꯑꯣꯛꯁꯤꯖꯦꯟ ꯏꯁ꯭ꯇꯔ ꯄꯨꯊꯣꯀꯏ, ꯃꯗꯨ ꯃꯇꯨꯡꯗꯥ ꯍꯤꯇꯤꯡ ꯀꯟꯗꯤꯁꯅꯁꯤꯡꯗꯥ ꯍꯥꯏꯗ꯭ꯔꯣꯂꯥꯏꯖ ꯇꯧꯗꯨꯅꯥ ꯑꯣꯛꯁꯤꯖꯦꯟ ꯑꯦꯁꯤꯗ ꯑꯃꯁꯨꯡ ꯃꯔꯤ ꯂꯩꯅꯕꯥ ꯑꯂꯀꯣꯍꯣꯜ ꯑꯗꯨ ꯁꯦꯝꯃꯤ꯫
ꯃꯁꯤꯒꯤ ꯄꯥꯝꯕꯩ ꯑꯁꯤꯅꯥ ꯀꯦꯇꯥꯂꯤꯁ꯭ꯠ ꯁꯤꯁ꯭ꯇꯦꯝ ꯑꯃꯈꯛꯇꯃꯛ ꯂꯩ, ꯑꯦꯛꯇꯤꯚꯤꯇꯤ ꯋꯥꯡꯕꯥ, ꯑꯐꯕꯥ ꯈꯅꯒꯠꯄꯥ, ꯐꯖꯅꯥ ꯔꯤꯀꯣꯚꯔꯤ ꯇꯧꯕꯥ, ꯄꯣꯠꯊꯣꯛ ꯁꯨꯡꯕꯥ ꯌꯥꯕꯥ, ꯑꯃꯁꯨꯡ ꯄꯨꯊꯣꯀꯄꯒꯤ ꯄꯣꯂꯨꯁꯟ ꯅꯦꯝꯕꯥ ꯂꯩ꯫ ꯑꯗꯨꯝ ꯑꯣꯏꯅꯃꯛ ꯃꯁꯤꯗꯥ ꯀꯥꯔꯕꯣꯟ ꯃꯣꯅꯣꯛꯁꯥꯏꯗ ꯁꯨꯡꯗꯣꯛꯠꯔꯤꯕꯥ ꯊꯥꯑꯣ, ꯌꯥꯝꯅꯥ ꯁꯤꯖꯤꯟꯅꯕꯥ, ꯃꯃꯜ ꯌꯥꯝꯂꯕꯥ ꯀꯦꯇꯥꯂꯤꯁ꯭ꯇꯁꯤꯡ, ꯑꯃꯁꯨꯡ ꯁꯦꯜ ꯊꯥꯗꯕꯥ ꯌꯥꯝꯅꯥ ꯃꯊꯧ ꯇꯥꯏ꯫
ꯄꯤ.ꯗꯤ./ꯁꯤ. ꯑꯣꯛꯁꯤꯖꯦꯟ ꯑꯦꯁꯤꯗ ꯑꯃꯁꯨꯡ ꯃꯔꯤ ꯂꯩꯅꯕꯥ ꯑꯂꯀꯣꯍꯣꯜ ꯑꯁꯤ ꯑꯣꯛꯁꯤꯖꯦꯟ ꯏꯁ꯭ꯇꯔ ꯍꯥꯏꯗ꯭ꯔꯣꯂꯥꯏꯖ ꯇꯧꯗꯨꯅꯥ ꯐꯪꯏ꯫ ꯇꯣꯈꯥꯌꯅꯥ ꯊꯃꯖꯤꯜꯂꯕꯥ ꯑꯂꯀꯣꯍꯣꯜ ꯁꯣꯜꯌꯨꯁꯟ ꯑꯗꯨ ꯔꯤꯑꯣꯛꯁꯤꯗ ꯇꯧꯗꯨꯅꯥ ꯅꯥꯏꯠꯔꯥꯏꯠ ꯏꯁ꯭ꯇꯔ ꯁꯦꯝꯃꯤ, ꯃꯗꯨ ꯔꯤꯁꯥꯏꯀꯜ ꯇꯧꯕꯥ ꯌꯥꯏ꯫
ꯆꯥꯏꯅꯥꯒꯤ ꯁꯥꯏꯟꯁ ꯑꯦꯀꯥꯗꯦꯃꯤꯒꯤ ꯐꯨꯖꯤꯌꯥꯟ ꯏꯟꯁꯇꯤꯠꯌꯨꯠ ꯑꯣꯐ ꯁ꯭ꯠꯔꯀꯆꯔ ꯑꯣꯐ ꯃꯦꯇꯔꯅꯥ ꯁꯤ.ꯑꯣ.ꯒꯤ ꯑꯦꯇꯃꯣꯁ꯭ꯐꯤꯌꯔ ꯄ꯭ꯔꯦꯁꯔ ꯀꯦꯇꯥꯂꯥꯏꯇꯤꯛ ꯀꯞꯂꯤꯡꯒꯤꯗꯃꯛ ꯀꯦꯇꯥꯂꯤꯁ꯭ꯇꯁꯤꯡꯒꯤ ꯔꯤꯁꯔꯆꯇꯥ ꯗꯥꯏꯃꯦꯊꯥꯏꯜ ꯑꯣꯛꯁꯥꯂꯦꯠꯀꯤ ꯀꯦꯇꯥꯂꯥꯏꯇꯤꯛ ꯁꯤꯟꯊꯦꯁꯤꯁꯀꯤ ꯃꯇꯥꯡꯗꯥ ꯔꯣ ꯃꯦꯇꯔꯤꯌꯦꯂꯁꯤꯡꯒꯤ ꯔꯦꯁꯤꯑꯣ ꯑꯃꯁꯨꯡ ꯇꯣꯉꯥꯟ ꯇꯣꯉꯥꯅꯕꯥ ꯁ꯭ꯄꯦꯁ ꯚꯦꯂꯣꯁꯤꯇꯤ ꯀꯟꯗꯤꯁꯅꯁꯤꯡꯒꯤ ꯃꯇꯥꯡꯗꯥ ꯔꯤꯁꯔꯆ ꯇꯧꯈ꯭ꯔꯦ, ꯑꯃꯁꯨꯡ ꯆꯨꯅꯕꯥ ꯔꯤꯑꯦꯛꯁꯟ ꯀꯟꯗꯤꯁꯅꯁꯤꯡ ꯈꯅꯈ꯭ꯔꯦ꯫ ꯑꯍꯣꯡꯕꯥ ꯄꯨꯔꯀꯄꯥ Pd (2.0%)/α-Al2O3 ꯀꯦꯇꯥꯂꯤꯁ꯭ꯠ ꯑꯁꯤꯅꯥ ꯑꯦꯇꯃꯣꯁ꯭ꯐꯤꯌꯔ ꯄ꯭ꯔꯦꯁꯔ, 140 °C, CO/CH3ONO=1.5, ꯑꯃꯁꯨꯡ ꯁ꯭ꯄꯦꯁ ꯚꯦꯂꯣꯁꯤꯇꯤ 3000/hꯒꯤ ꯀꯟꯗꯤꯁꯅꯁꯤꯡꯗꯥ 999 g/L·hꯒꯤ ꯁ꯭ꯄꯦꯁ-ꯇꯥꯏꯝ ꯌꯤꯜꯗ ꯑꯃꯥ ꯐꯪꯈꯤ꯫ ꯏꯟꯁꯇꯤꯠꯌꯨꯠ ꯑꯁꯤꯅꯥ ꯐꯨꯖꯤꯌꯥꯟ ꯄꯦꯠꯔꯣꯀꯦꯃꯤꯀꯦꯜ ꯗꯤꯖꯥꯏꯟ ꯏꯟꯁꯇꯤꯠꯌꯨꯠ ꯑꯃꯁꯨꯡ ꯐꯨꯖꯤꯌꯥꯟ ꯅꯥꯅꯀꯤꯡ ꯑꯦꯃꯣꯅꯤꯌꯥ ꯄ꯭ꯂꯥꯟꯇꯀꯥ ꯂꯣꯌꯅꯅꯥ ꯁꯤꯟꯊꯦꯇꯤꯛ ꯑꯦꯃꯣꯅꯤꯌꯥ ꯀꯄꯥꯔ ꯁ꯭ꯛꯔꯕꯤꯡ, ꯑꯦꯇꯃꯣꯁ꯭ꯐꯤꯌꯔ ꯄ꯭ꯔꯦꯁꯔ ꯀꯦꯇꯥꯂꯥꯏꯇꯤꯛ ꯁꯤꯟꯊꯦꯁꯤꯁ ꯑꯣꯐ ꯗꯥꯏꯃꯤꯊꯥꯏꯜ ꯑꯣꯛꯁꯥꯂꯦꯠ, ꯑꯃꯁꯨꯡ ꯍꯥꯏꯗ꯭ꯔꯣꯂꯥꯏꯁꯤꯁ ꯇꯨ ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗꯇꯒꯤ ꯁꯤ.ꯑꯣ.
ꯂꯤꯛꯕꯤꯗ-ꯐꯦꯖ ꯃꯦꯊꯗꯀꯥ ꯆꯥꯡꯗꯝꯅꯕꯗꯥ, ꯃꯦꯊꯗ ꯑꯁꯤꯅꯥ ꯁꯦꯂꯦꯛꯇꯤꯕꯤꯇꯤ ꯋꯥꯡꯕꯥ, ꯏꯆꯝ ꯆꯝꯕꯥ ꯄ꯭ꯔꯣꯁꯦꯁ, ꯄꯣꯠꯊꯣꯛ ꯁꯨꯡꯕꯒꯤ ꯆꯥꯡ ꯋꯥꯡꯕꯥ, ꯑꯃꯁꯨꯡ ꯄꯨꯊꯣꯀꯄꯒꯤ ꯃꯃꯜ ꯅꯦꯝꯕꯥ ꯂꯩ꯫ ꯃꯁꯤꯅꯥ ꯅꯦꯆꯔꯦꯜ ꯒ꯭ꯌꯥꯁ ꯅꯠꯠꯔꯒꯥ ꯀꯣꯌꯂꯥꯕꯨ ꯔꯣ ꯃꯦꯇꯔꯤꯌꯦꯜ ꯑꯣꯏꯅꯥ ꯁꯤꯖꯤꯟꯅꯕꯥ ꯌꯥꯏ, ꯑꯃꯁꯨꯡ ꯑꯦꯃꯣꯅꯤꯌꯥ ꯀꯄꯥꯔ ꯁ꯭ꯛꯔꯕ ꯇꯧꯕꯥ ꯅꯠꯠꯔꯒꯥ ꯌꯦꯜꯂꯣ ꯐꯣꯁꯐꯔꯁ ꯐꯔꯅꯤꯆꯔ, ꯕ꯭ꯂꯥꯁ꯭ꯠ ꯐꯔꯅꯦꯁ, ꯑꯃꯁꯨꯡ ꯀꯟꯚꯥꯔꯇꯔ ꯇꯦꯜ ꯒ꯭ꯌꯥꯁꯇꯒꯤ ꯂꯧꯊꯣꯀꯄꯥ ꯀꯥꯔꯕꯣꯟ ꯃꯣꯅꯣꯛꯁꯥꯏꯗ ꯒ꯭ꯌꯥꯁꯀꯤ ꯁꯣꯔꯁ ꯑꯣꯏꯅꯥ ꯁꯤꯖꯤꯟꯅꯕꯥ ꯌꯥꯏ꯫ ꯃꯁꯤꯒꯥ ꯂꯣꯌꯅꯅꯥ ꯃꯁꯤꯅꯥ ꯏꯊꯥꯅꯣꯜ ꯒ꯭ꯂꯥꯏꯀꯣꯜ ꯄꯨꯊꯣꯛꯅꯕꯥ ꯑꯃꯁꯨꯡ ꯏꯟꯇꯔꯃꯤꯗꯤꯌꯦꯠ ꯑꯃꯥ ꯑꯣꯏꯅꯥ ꯑꯣꯛꯁꯤꯖꯦꯟ ꯏꯁ꯭ꯇꯔꯒꯥ ꯂꯣꯌꯅꯅꯥ ꯌꯨꯅꯤꯐꯥꯏꯗ ꯁꯤꯟꯊꯦꯁꯤꯁꯀꯤꯗꯃꯛ ꯁꯦꯟꯗꯣꯡ ꯂꯩꯕꯥ ꯔꯣ ꯃꯦꯇꯔꯤꯌꯦꯂꯁꯤꯡ ꯄꯤꯕꯥ ꯉꯃꯒꯅꯤ꯫

ꯁꯥꯟꯗꯣꯡ ꯄꯨꯂꯤꯁꯤ ꯀꯦꯃꯤꯀꯦꯜ ꯀꯣꯡ, ꯂꯤꯃꯤꯇꯦꯗ | ꯄ꯭ꯔꯤꯃꯤꯌꯥꯝ ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗ ꯄ꯭ꯔꯣꯚꯥꯏꯗꯔ꯫
꯲꯰꯰꯶ꯇꯥ ꯂꯤꯡꯈꯠꯈꯤꯕꯥ ꯄꯨꯂꯤꯁꯤ ꯀꯦꯃꯤꯀꯦꯜ ꯑꯁꯤꯅꯥ ꯏꯟꯗꯁ꯭ꯠꯔꯤꯌꯦꯜ ꯑꯃꯁꯨꯡ ꯔꯤꯐꯥꯏꯟꯗ ꯒ꯭ꯔꯦꯗ ꯑꯅꯤꯃꯛꯀꯤ ꯏꯟꯇꯔꯅꯦꯁ꯭ꯅꯦꯜ ꯑꯦꯛꯁꯄꯣꯔꯠ ꯁ꯭ꯇꯦꯟꯗꯔꯗꯁꯤꯡꯒꯥ ꯆꯨꯅꯕꯥ ꯍꯥꯏ-ꯄ꯭ꯌꯨꯔꯤꯇꯤ ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗ (ꯁꯤ.ꯑꯦ.ꯑꯦꯁ. ꯱꯴꯴-꯶꯲-꯷)ꯗꯥ ꯑꯈꯟꯅꯕꯥ ꯃꯤꯠꯌꯦꯡ ꯆꯪꯂꯤ꯫ ꯑꯩꯈꯣꯌꯒꯤ ꯖꯤꯕꯣꯗꯥ ꯌꯨꯝꯐꯝ ꯑꯣꯏꯕꯥ ꯃꯦꯟꯌꯨꯐꯦꯀꯆꯔꯤꯡ ꯐꯦꯁꯤꯂꯤꯇꯤ ꯑꯁꯤꯅꯥ ꯑꯀꯅꯕꯥ ꯀ꯭ꯕꯥꯂꯤꯇꯤ ꯀꯟꯠꯔꯣꯜ ꯁꯣꯏꯗꯅꯥ ꯐꯪꯍꯜꯂꯤ, ꯏꯟꯗꯁ꯭ꯠꯔꯤꯒꯤ ꯒ꯭ꯔꯦꯗ ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗꯅꯥ ꯌꯥꯃꯗ꯭ꯔꯕꯗꯥ ꯹꯶%ꯒꯤ ꯁꯨꯡꯗꯣꯛꯠꯔꯤꯕꯥ ꯊꯥꯑꯣꯒꯤ ꯆꯥꯎꯊꯣꯀꯆꯕꯥ ꯄꯣꯀꯏ ꯑꯃꯁꯨꯡ ꯔꯤꯐꯥꯏꯟꯅꯥꯏꯖ ꯇꯧꯔꯕꯥ ꯒ꯭ꯔꯦꯗ ꯑꯁꯤꯅꯥ ꯹꯹.꯶% ꯁꯨꯡꯕꯒꯤ ꯆꯥꯡ ꯌꯧꯏ-ꯇꯣꯉꯥꯟ ꯇꯣꯉꯥꯅꯕꯥ ꯏꯟꯗꯁ꯭ꯠꯔꯤꯒꯤ ꯃꯊꯧ ꯇꯥꯕꯁꯤꯡ ꯑꯗꯨ ꯐꯪꯍꯜꯂꯤ꯫
ꯑꯩꯈꯣꯌꯒꯤ ꯑꯣꯛꯁꯥꯂꯤꯛ ꯑꯦꯁꯤꯗ ꯑꯁꯤ ꯃꯁꯤꯒꯤ ꯑꯐꯕꯥ ꯁꯣꯜꯌꯨꯕꯤꯂꯤꯇꯤ ꯑꯃꯁꯨꯡ ꯁ꯭ꯇꯦꯕꯜ ꯀꯦꯃꯤꯀꯦꯜ ꯄ꯭ꯔꯣꯄꯔꯇꯤꯁꯤꯡꯒꯤꯗꯃꯛꯇꯥ ꯃꯁꯛ ꯊꯣꯀꯄꯥ ꯑꯣꯏꯔꯤ, ꯃꯁꯤꯅꯥ ꯁꯦꯛꯇꯔ ꯈꯨꯗꯤꯡꯃꯛꯇꯥ ꯌꯥꯝꯅꯥ ꯁꯤꯖꯤꯟꯅꯕꯥ ꯌꯥꯕꯥ ꯔꯣ ꯃꯦꯇꯔꯤꯌꯦꯜ ꯑꯃꯥ ꯑꯣꯏꯅꯥ ꯊꯕꯛ ꯇꯧꯔꯤ꯫ ꯙꯥꯇꯨꯒꯤ ꯄ꯭ꯔꯣꯁꯦꯁꯤꯡꯗꯥ, ꯃꯁꯤꯅꯥ ꯁ꯭ꯇꯤꯜ, ꯑꯦꯂꯨꯃꯤꯅꯤꯌꯝ, ꯑꯃꯁꯨꯡ ꯀꯄꯥꯔꯗꯒꯤ ꯃꯩꯁꯥ ꯑꯃꯁꯨꯡ ꯁꯔꯐꯦꯁ ​​ꯑꯣꯛꯁꯥꯏꯗ ꯂꯦꯌꯔꯁꯤꯡ ꯏꯐꯤꯁꯤꯌꯦꯟꯇ ꯑꯣꯏꯅꯥ ꯂꯧꯊꯣꯀꯏ, ꯃꯁꯤꯅꯥ ꯑꯣꯇꯣꯃꯣꯇꯤꯕ, ꯑꯦꯔꯣꯁ꯭ꯄꯦꯁ ꯑꯃꯁꯨꯡ ꯏꯂꯦꯛꯠꯔꯣꯞꯂꯦꯇꯤꯡ ꯑꯦꯞꯂꯤꯀꯦꯁꯅꯁꯤꯡꯒꯤꯗꯃꯛꯇꯥ ꯀꯣꯇꯤꯡ ꯑꯦꯗꯖꯦꯁꯟ ꯍꯦꯅꯒꯠꯍꯜꯂꯤ꯫ ꯇꯦꯛꯁꯇꯥꯏꯂꯁꯤꯡꯗꯥ ꯃꯁꯤꯅꯥ ꯏꯀꯣ-ꯐ꯭ꯔꯦꯟꯗꯂꯤ ꯕ꯭ꯂꯤꯆꯤꯡ ꯑꯦꯖꯦꯟꯇ ꯑꯃꯁꯨꯡ ꯗꯥꯏ ꯐꯤꯛꯁꯦꯇꯤꯕ ꯑꯃꯥ ꯑꯣꯏꯅꯥ ꯊꯕꯛ ꯇꯧꯏ, ꯃꯁꯤꯅꯥ ꯐꯦꯕ꯭ꯔꯤꯛ ꯃꯆꯨꯒꯤ ꯈꯣꯡꯖꯦꯜ ꯑꯃꯁꯨꯡ ꯃꯉꯥꯜ ꯐꯒꯠꯍꯜꯂꯤ꯫
ꯃꯁꯤꯒꯤ ꯃꯊꯛꯇꯥ, ꯃꯁꯤ ꯐꯥꯔꯃꯥꯁ꯭ꯌꯨꯇꯤꯀꯦꯜ ꯁꯤꯟꯊꯦꯁꯤꯁ, ꯎ ꯄ꯭ꯔꯣꯁꯦꯁꯤꯡ, ꯔꯦꯌꯔ ꯑꯥꯔꯊ ꯃꯦꯇꯜ ꯑꯦꯛꯁꯠꯔꯥꯛꯁꯟ, ꯑꯃꯁꯨꯡ ꯋꯥꯇꯔ ꯁ꯭ꯀꯦꯜ ꯇ꯭ꯔꯤꯠꯃꯦꯟꯇꯇꯥ ꯄꯥꯛ ꯁꯟꯅꯥ ​​ꯁꯤꯖꯤꯟꯅꯩ꯫ ꯑꯥꯏ.ꯑꯦꯁ.ꯑꯣ.꯹꯰꯰꯱ ꯑꯃꯁꯨꯡ ꯏ.ꯌꯨ. ꯑꯆꯧꯕꯥ ꯏꯟꯗꯁ꯭ꯠꯔꯤꯒꯤ ꯄꯨꯊꯣꯀꯄꯒꯤ ꯑꯣꯏꯔꯕꯁꯨ ꯅꯠꯠꯔꯒꯥ ꯑꯋꯥꯡꯕꯥ ꯊꯥꯛꯀꯤ ꯑꯦꯞꯂꯤꯀꯦꯁꯅꯁꯤꯡꯒꯤꯗꯃꯛ ꯑꯣꯏꯔꯕꯁꯨ, ꯄꯨꯂꯤꯁꯤ ꯀꯦꯃꯤꯀꯦꯂꯅꯥ ꯂꯦꯞꯄꯥ ꯂꯩꯇꯅꯥ ꯃꯒꯨꯟ ꯂꯩꯕꯥ ꯑꯃꯁꯨꯡ ꯄ꯭ꯔꯣꯐꯦꯁ꯭ꯅꯦꯜ ꯁꯄꯣꯔꯠ ꯄꯤꯔꯤ꯫

https://www.pulisichem.com/ꯀꯟꯇꯦꯛꯇ-ꯌꯨꯁ/ꯗꯥ ꯊꯥꯕꯤꯔꯀꯎ꯫


ꯄꯣꯁ꯭ꯇꯀꯤ ꯃꯇꯝ: ꯑꯦꯞꯔꯤꯜ-꯱꯴-꯲꯰꯲꯶꯫