C⁺⁴O^-2₂, S⁺⁶O^-23, H⁺¹2S^-2, H⁺¹2C⁺⁴O^-23, H⁺¹2C⁺⁶O^-24, C⁺O^—, H⁺¹2O^-2

N⁺¹a₂S⁸O^-2₄ 

N⁺¹a⁴₂SO^-2₃

Li⁺¹₂⁴O^-2

K⁺¹₂O^4-2

C_a⁺²O^4-2

Zn⁺²O^{4 -2}

C^-4H⁺¹₄