Hardness Increaser (Calcium Chloride )

Hardness Increaser is used to raise the calcium hardness level in the pool to the ideal range. Prevents water from becoming corrosive and damaging pool’s plumbing and heater. Stops staining and etching of pool surfaces caused by low hardness levels.

1. Product Description

Chemical Name:  Calcium Chloride

Molecular Formula: CaCl2
CAS No.: 10035-04-8

EINECS NO.: 233-140-8

HS Code: 2827200000

Purity: 74% min


2. Applications

1) Water Balance: raise the calcium hardness level in the pool.

2) Construction: increase hardness of concrete and increase cold resistance ability of the construction.

3) Industry: Protective agent and refining agent for petroleum/oil field; cryogen for freezing machine and making ice; dehydration agent for producing alcohol, ester, ether and acrylic acid; pigment assistance agent for textile; printing ink removal in waste paper processing.

4) Others: melting snow and ice, dryer, anti-fog & anti-dust agent, fireproof agent.


3. Specification

Test Item



White flakes/pellet/granular


74% min


4% max

Ca(OH) 2   

0.15% max


0.1% max

Water insoluble matter

0.1% max


10ppm max


2ppm max


4. Packages and transportation

25kg, 50kg/woven bag with PP liner