S-type single-stage double-suction centrifugal pump is a new energy-saving horizontal open pump for conveying clean water Or other liquids with physical and chemical properties similar to water. According to the needs of users, the pump structure and material can be used to transport muddy sand or various corrosive liquids. This series of pumps is suitable for factories, mines, urban water supply and drainage, power stations, farmland. Drainage and irrigation and various water conservancy projects.

Structure Description
The suction port and the discharge port of this type of pump are both below the axis of the pump shaft and are horizontally perpendicular to the axis. There is no need to dismantle the inlet and outlet pipes and motors during maintenance. Seen from the direction of the drive, the pump rotates clockwise (can also be rotated counterclockwise according to the user's needs).
The main parts of the pump are: pump body, pump cover, impeller, shaft, double suction seal ring, bushing and so on.
The pump body and the pump cover form a working chamber of the impeller. On the inlet and outlet flanges, a pipe screw hole is provided for mounting a vacuum gauge and a pressure gauge. The lower part of the inlet and outlet water flange is provided with a pipe screw hole for discharging water.
The statically balanced impeller is fixed to the shaft by a bushing and bushing nuts on both sides, and its axial position can be adjusted by the bushing nut.
The pump shaft is supported by two single row radial ball bearings. The bearing is mounted in the bearing body, mounted on both ends of the pump body, and lubricated with butter.
The double suction seal ring is used to reduce water leakage from the water pumping chamber of the water pump to the suction chamber.
The pump is directly driven by the electric motor through a flexible coupling, and can also be driven by an internal combustion engine if necessary.
The shaft seal is a soft packing seal (a mechanical seal can be used according to the user's needs).

???? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ????????

???????????? Model ????????????	???????????? Traffic Q ????????????( m3/h) ????????????	???????????? Head H ????????????(m) ????????????	???????????? Speed ??n ????????????(r/min) ????????????	???????????? Power (KW) ????????????		???????????? Efficiencyη ????????????(%) ????????????	???????????? Sparking allowance (NPSH)r(m) ????????????
				???????????? axis power ????????????	???????????? Motor Power ????????????
100S90	80	90	2950	30.1	37	65	2.5
100S90A	72	75		23	30	64	2.5
150S100	160	100		59.8	75	73	3.5
150S78	160	78		45	55	73.5	3.5
150S78A	144	62		33.8	45	72	3.5
150S50	160	50		27.3	37	80	3.9
150S50A	144	40		20.9	30	75	3.9
150S50B	133	36		18.6	22	70	3.9
200S95	280	95		91.7	110	79.2	5.3
200S95A	270	75		73.5	90	75	5.3
200S63	280	63		58.3	75	82.7	5.8
200S63A	270	46		45.1	55	75	5.8
200S42	280	42		38.1	45	84.2	6
200S42A	270	36		33.1	37	80	6
250S65	485	65	1450	109	132	78.6	3
250S65A	468	54		89.4	110	77	3
250S39	485	39		61.5	75	83.6	3.2
250S39A	468	30.5		49.3	55	79	3.2
250S24	485	24		36.9	45	85.8	3.5
250S24A	414	20.3		27.6	37	83	3.5
250S14	485	14		21.5	30	85.8	3.8
250S14A	432	11		15.8	18.5	82	3.8
300S110	790	110		295.7	440	80	4
300S90	790	90		242.8	315	79.6	4
300S90A	756	78		217	280	74	4
300S90B	720	67		180	220	73	4
300S58	790	58		149.9	180	84.2	4.4
300S58A	720	49		118.6	160	81	4.4
300S58B	684	43		100	132	80	4.4
300S32	790	32		79.2	110	86.8	4.6
300S32A	720	26		60.7	75	84	4.6
300S19	790	19		47	55	86.8	5.2
300S19A	720	16		39.2	45	80	5.2
300S12	790	12		30.4	37	84.8	5.5
300S12A	684	10		3.9	30	78	5.5
350S125	1260	125		534	710	80.5	5.4
350S125A	1181	112		462	630	78	5.4
350S125B	1098	96		373	500	77	5.4
350S75	1260	75		303	355	85.2	5.8
350S75A	1170	65		247	280	84	5.8
350S75B	1080	55		197	220	82	5.8
350S44	1260	44		173	220	87.5	6.3
350S44A	1116	36		131	160	84	6.3
350S26	1260	26		102	132	87.5	6.7
350S26A	1116	21.5		78.8	90	83	6.7
350S16	1260	16		64.5	75	85.3	7.1
350S16A	1044	13.4		48.8	55	48	7.1
500S98	2020	95	970	678	800	79.5	4
500S98A	1872	83		540	630	78.5	4
500S98B	1746	74		452	560	78	4
500S59	2020	59		391	450	83	4.5
500S59A	1872	49		333	400	75	4.5
500S59B	1746	40		257	315	74	4.5
500S35	2020	35		219	280	88	4.8
500S35A	1746	27		151	220	85	4.8
500S22	2020	22		144.1	185	84	5.2
500S22A	1746	17		101	132	80	5.2
500S13	2020	13		86.2	110	83	5.7
600S75	3170	75		727	800	89	7.5
600S75A	2880	65		580	630	88	7.5
600S47	3170	47		465	560	88	7.5
600S32	3170	32		310	400	89	7.5
600S32A	2880	27		238	280	89	7.5
600S22	3170	22		223	280	85	7.5
600S22A	2880	18.2		168.5	200	84.5	7.5

Corrosion resistance of the main material of the pump (for reference)

???? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ????????

Media	concentration ????????????(%)	Polypropylene		concentration ????????????(%)	A B C
		25°C	50°C		20°C	60°C
Sulfuric acid	60	√		<30	√	Χ
Nitrate	25	√		20	√	Ο
Hydrochloric acid	<36	√		<38	√	√
Hydroxyfluoric acid	35	√		40	√	Χ
Acetate	<80	√		<20	√	Ο
Sodium hydroxide	100	√			√	√
potassium dichromate	25	√			√	√
Stinky water		Χ			Ο	Χ
Ethanol		√		<50	√	√
Acetone		√		10	Ο
Tetrachloroethane		Ο			Ο	Χ
Freon 22		√			Ο	Ο
bleaching solution	CL13%	√		CL12.5%	Ο	Ο
Plating solution		√			Ο	Χ
Photographic fluid		√			√	√

 

???? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ????

Media	concentration ????????????(%)	Stainless steel		concentration ????????????(%)	Ceramic
		25°C	50°C		25°C	50°C
Sulfuric acid	<5	√	Χ		△	△
Nitrate	70	△	√		△	△
Hydrochloric acid		Χ			△	△
Hydroxyfluoric acid		Χ		0~100	Χ
Acetate	<20	√	√		△	△
Sodium hydroxide	70	√	√		Ο	Χ
potassium dichromate	40~60	△	△	10~20	△	△
Stinky water		Ο			△	△
Ethanol		△	√		△	△
Acetone		△	△		△
Tetrachloroethane	50	△	△		△	△
Freon 22		△			△	△
bleaching solution	CL12%	Χ			△	△
plating solution					△	△
Photographic fluid		△			△	△

Note: △ is excellent; √ is good; Ο is available, but has obvious corrosion; Χ severe corrosion, not applicable.


Physical and mechanical properties of PVDF

???? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ????

Performance	unit	Press
density	g/cm3	1.75-1.79
比度	cm3/g	0.56-0.75
melting point range	0c	155-170
refractive index	n25D	1.42
Molding shrinkage rate	%	2-3
Stretching strong hair (yield)	Mpa	28-41
Stretching strong hair (breaking)	Mpa	31-52
Elongation (fracture)	%	100-400
Impact strength (no gap)	KJ/m	107-214
compressive strength	Mpa	55-69
hardness (Shore D)		70-80
Abrasion	mg/1000r	7.0-9.0
Limited Oxygen Index (l0 I)	%	44
burning rate		V-D
resistivity	u194	1.0x10 15
Dielectric number	10 31 CYCles	9.7

Polyvinylidene fluoride (PVDF) chemical resistance

???? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ????

Chemical Medium	concentration ????????????(%)	Maximum operating temperature °C	Chemical Medium	concentration ????????????(%)	Maximum operating temperature °C	Chemical Medium	concentration ????????????(%)	Maximum operating temperature °C
hydrochloric acid	36	135	Hydrogen Hydroxide	<10	85	ethanol		135
sulfuric acid	<60	120	Hydrogen Hydroxide	50	50	etherether		50
sulfuric acid	80-93	95	Carbon ammonium oxide		110	Formaldehyde	37	50
sulfuric acid	90	65	Carbon calcium oxide		135	Acetone	10% aqueous solution	50
Nitrate	<50	50	carbonate	aqueous solution	135	肼	aqueous solution	95
phosphoric acid	<85	135	Sodium bicarbonate	aqueous solution	120	benzene		75
phosphoric acid	85	110	Ammonia water		110	aniline		50
acetic acid	10	110	saline		135	toluene		85
acetic acid	80	80	Sodium hydrogen phosphate	aqueous solution	120	phenol		50
acetic acid	100	50	calcium phosphate	aqueous solution	135	chlorobenzene		135
trichloroacetic acid	<10	95	calcium oxide	aqueous solution	135	naphthalene		95
trichloroacetic acid	50	50	potassium oxide	aqueous solution	135	chloromethane		135
oxalic acid		50	Ammonium Oxide	aqueous solution	135	chloroform		50
benzenesulfonic acid	aqueous solution	50	ferric oxide	aqueous solution	135	CTC		135
hydrofluoric acid	40-100	95	ferrous ferrous sulfate	aqueous solution	135	chloroethane		135
hydrofluoric acid	40	120	ammonium sulfate	aqueous solution	135	1.2 trichloroethane		135
hydrobromic acid	50	130	ammonium sulfate	aqueous solution	135	1.1.2 trichloroethane		65
Peroxyacid	10	95	Sodium nitrate	aqueous solution	135	tetrachloroethane		120
Peroxyacid	70	50	ammonium phosphate	aqueous solution	135	vinyl chloride		95
Nanochloric acid	6-15	95	urea	aqueous solution	120	Trichloroethylene		135
potassium chlorate		100	CO2		80	Dichloroethylene		110
chromic acid	<40	80	chlorine dioxide		75	natural gas		135
chromic acid	50	50	chlorine dioxide		65	fuel oil		135
High potassium sulphate		120	chlorine	element	95	Paraffin oil		120
hydrogen peroxide	<30	95	bromine	element	65
Sodium peroxide		95	Iodine	element	65

Fluorine and corrosion performance table (for reference only)

???? ???????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????????? ???????? ????

		temperature, °C
media	concentration%	25	200	media	concentration%	Temperature, 200 °C
sulfuric acid	0-100	√	√	formic acid		√	√	√
fuming sulfuric acid		√	√	acetic acid (acetic acid)	0-ice	√	√	√
Nitrate	0-100	√	√	acetic acid		√	√	√
fuming sulfuric acid		√	√	propionic acid		√	√
hydrochloric acid		√	√	acrylic		√
phosphoric acid		√	√	acrylic anhydride		√	√	√(boiling point)
hydrofluoric acid		√	√	methacrylic acid		√	√	√(boiling point)
hydrobromic acid		√	√	butyric acid		√	√	√
Hydrioiodic acid		√	√	辛酸		√	√	√
hydrocyanic acid		√	√	lauric acid		√	√	√
nitrous acid		√	√	palmitic acid		√	√	√
nitrous acid		√	√	stearic acid		√	√	√
chloric acid		√	√	oleic acid		√	√	√
hypochlorous acid		√	√	linoleic acid		√	√	√
Perchloric acid		√	√	rosin acid		√	√	√
tetraphosphoric acid		√	√	fatty acid		√	√
carbonated		√	√	chloroacetic acid		√	√	√
chromic acid		√	√	lactic acid		√	√	√
silicic acid		√	√	oxalic acid (oxalic acid)		√	√	√
boric acid		√	√	fumaric acid		√	√	√
arsenic acid		√	√	citric acid		√	√	√
selenic acid		√	√	nicotinic acid		√	√	√
fluorosilicic acid		√	√
Fluoroborate		√	√
chlorosulfonate		√	√
王水		√	√
mixed acid		√	√

 

???? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ???????? ???????????? ???????????? ???????????? ???????? ????

media	concentration%	temperature, 200 °C
Sodium hydroxide		√
potassium hydroxide		√
ammonium hydroxide		√
Magnesium hydroxide		√
calcium hydroxide		√
Aluminum Hydroxide		√
Barium hydroxide		√
iron hydroxide		√
ferrous hydroxide		√
nickel salt		√
nickel sulfate		√
Nitrate nitrate		√
nickel chloride		√
Zinc salt		√
Zinc sulfate		√
Zinc nitrate		√
Zinc chloride		√