Water Softener Comparison

Water Softener Comparison
Time:2018-01-18 From: rawchemchina.com

Water Softener Comparison

 

 

STPP

ZEOLITE

APSM

MSD

CSDS

SLSM

 

 

Synthetic

Natural

(also called PSM,PSMA)

 

 

 

 

 

 

 

Full name

Sodium Tripolyphosphate

4A Zeolite

4A Zeolite

Active Poly Sodium Metasilicate

Modified Sodium Disilicate

Complex Sodium Disilicate

Super Light Sodium Metasilicate

 

Appearance

White fine powder

White powder

White fine free flowing powder

White granular

White granular

White granular

 

Whiteness

90 min

95 min

80 min

85 min

85 min

85 min

85 min

 

Odor

 

 

 

No odor, but irritant to nose and

 

 

 

 

No odor

No odor

No odor

eyes because the powder is too

No odor

No odor

No odor

 

 

 

 

 

fine and too light

 

 

 

 

Bulk

650~950 g/L

550~ 700

1100~1300

300 ~ 450 g/L

480 ~ 600

480~600

480~600 g/L

 

density

 

 

 

 

 

 

 

 

 

Loading qty

25~26mt/20fcl

20mt/20fcl

27mt/20fcl

27mt/40HQ

27mt/40HQ

27mt/40HQ

27mt/40HQ

 

Effect

Best

Normal

Bad

N/A

N/A

N/A

N/A

 

Main

 

Na2O

Na12AL12Si

 

 

 

 

 

Na5P3O10 94% min

Al2O3

12O48·27H2

Na2O + SiO2 74% min

Na2O2SiO2

Na2O2SiO2

Na2O2 SiO2

 

content

 

 

SiO2

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ca exchange

N/A

295 min

N/A

320 mg/g

450 mg/g

450 mg/g

450 mg/g

 

Mg exchange

N/A

175 min

N/A

330 mg/g

N/A

N/A

N/A

 

pH

9.2 ~10.3

11 max

11.3 max

11 max

12.0 max

12.0 max

12 max

 

Identical

P2O5 content

Al3+ content

N/A

Na2O + SiO2 content

SiO2 content

SiO2 content

SiO2 content

 

index

 

 

 

 

 

 

 

 

 

Value of

 

 

 

 

 

 

 

 

identical

56.5% min

18% min

N/A

75% min

25% min

25% min

25% min

 

index

 

 

 

 

 

 

 

 

Water

0.1% max

N/A

N/A

1.5% max

1.5% max

1.5% max

1.5% max

 

insoluble

 

 

 

 

 

 

 

 

 

Moisture

 

22% max

16% max

 

 

 

 

 

0.5% max

loss on 800

loss on 600

N/A

5% max

5% max

5% max

 

 

 

 

 

 

 

 

Comments:

 

 

 

 

 

 

 

 

 

1, STPP & Synthetic 4A Zeolite are real products which have been approved by long-term application

2, Natural Zeolite just have very little effective content, the quality is limited to the ore

3, APSM’s advantage is the Mg2+ binding capability, suitable for the market where the water contains Mg2+.  MSD, CSDS, SLSM are actually the same thing, some suppliers are just playing with names and numbers

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