In the phosphating solution, the performance is stable, dissolved, clear transparent, phosphating solution is better played in the metal surface anti-corrosion, anti-aging, protection of metal and so on.

Item	Quality
	NKSLH1	NKSLH2	NKSLH3	NKSLH4
ZnO/% ≥	99.7	99.5－99.7	99.0－99.5	98.0－99.0
Metal ( Zn ) %≤	None	None	None	None
Lead oxide( Pb ) %≤	0.03－0.05	0.10－0.14	0.30－0.50	0.80－1.00
Manganese oxide ( Mn) %≤	0.0001	0.0003	0.0005	0.0008
Cupric oxide ( Cu ) %≤	0.0002	0.001	0.006	0.01
Hydrochloric indissoluble substance %≤	0.003-0.01	0.03－0.05	0.08－0.10	0.20－0.40
Burning decrement %≤	0.2－0.4	0.4－0.6	0.8－1.0	1.2－1.4
Sieve Residue %≤	0.1－0.2	0.2－0.4	0.5－0.8	1.0－1.2
Water dissoluble %≤	0.1－0.2	0.2－0.4	0.5－0.8	1.0－1.2