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Sorry! ECHA has not published any information for this chemical as of January 1, 2020.

Magnesium sulfate heptahydrate

Primary Chemical Name :

Primary Chemical Name is the standard name assigned to a chemical substance.

Magnesium sulfate heptahydrate
CAS Registry Number:

Chemical Abstracts Service Registry Number is a unique identifier for a chemical and its synonyms. CAS numbers identify the chemical, but not its concentration or specific mixture.  CAS Registry Numbers are assigned by the Chemical Abstracts Service, a division of the American Chemical Society. For more information: www.cas.org

We have assigned "ID numbers" (with 6 leading zeros or nines, e.g., 000000-xx-x , 888888-xx-x) or 999999-xx-x) for blends and chemicals that do not have CAS numbers. 

EC Number:

The EC Number, formerly known as the EINECS number is a unique 7-digit number (format: xxx-xxx-x) assigned to chemicals registered with the European Chemicals Agency (ECHA).


Synonyms are alternative names that represent the same chemical substance.

Magnesium Sulfate;Magnesium sulfate heptahydrate;Sulfuric acid, magnesium salt (1:1), heptahydrate

SVHC is a substance (identified by the European Chemicals Agency) that may have serious and often irreversible effects on human health and the environment. SVHC are defined in Article 57 of Regulation (EC) No 1907/2006 (“the REACH Regulation”) and include substances which are:
1.  Carcinogenic, Mutagenic or toxic to Reproduction (CMR), meeting the criteria for classification in category 1 or 2 in accordance with Directive 67/548/EEC or in category 1a or 1b in accordance with EC No 1272/2008This directive was recently replaced by the new EU regulation (EC) No 1272/2008.
2.  Persistent, Bioaccumulative and Toxic (PBT) or very Persistent and very Bioaccumulative (vPvB) according to the criteria in Annex XIII of the REACH Regulation, or
3.  Identified, on a case-by-case basis, from scientific evidence as causing probable serious effects to human health or the environment of an equivalent level of concern as those above (e.g. endocrine disrupters).


Sources for Information on Chemicals

List of 24 Brands that contain this chemical

Product Category

HTH 3-in-1 Chlorinating Skimmer Tablets-03/09/2016

solid 25.0-35.0

HTH Shock Treatment-06/08/2017

powder 20.0-35.0

HTH Super Green to Blue Shock System, Part I-06/24/2015

powder 15.0-20.0
Customblen CRF Palm Fertilizer-Old Product coated prills --
11194_01031001 Image HTH 3-in-1 Chlorinating Skimmer Tablets.jpg
HTH 3-in-1 Chlorinating Skimmer Tablets-Old Product tablets 25-35
11199_01031005 Image HTH Chlorinating Granules.jpg
HTH Chlorinating Granules-Old Product granules 25-35
11204_01031010 Image HTH Shock N Swim.jpg
HTH Shock N Swim-Old Product granules 25-35
11205_01031011 Image HTH Spa Chlorinating Sanitizer.jpg
HTH Spa Chlorinating Sanitizer-Old Product granules 25-35
11207_01031013 Image HTH Spa Shock.jpg
HTH Spa Shock-Old Product granules 25-35
11211_01031017 Image HTH Super Shock N Swim.jpg
HTH Super Shock N Swim-Old Product granules 29-31
Scotts Palm Food 15-5-15-Old Product granules --
Inside the Home

Finish Powerball Advanced Clean, Automatic Dishwasher Detergent, Tablets-12/09/2019

tablets --

Finish Powerball Automatic Dishwasher Detergent Free From Phosphates & Chlorine Bleach, Tablets-09/08/2018

tablets --

Finish Powerball Quantum Tabs With Activblu Technology-10/10/2019

tablets --

Finish Powerball Quantum Tabs With Activblu Technology, Baking Soda-10/10/2019

tablets --

Finish Powerball Quantum Tabs With Activblu Technology, Lemon Scent-10/10/2019

tablets --

Finish Powerball Quantum Tabs, Baking Soda-09/17/2018

tablets --

Finish Powerball Quantum Tabs, Lemon Scent-12/18/2017

tablets --

Finish Powerball Quantum Tabs, Original Scent-12/18/2017

tablets --
Ajax Super Degreaser Dish Liquid, Lemon-Old Product liquid 1.0-5.0

Seventh Generation Natural Powdered Laundry Detergent, Free & Clear-04/22/2016-Old Product

powder 1.0-3.0
Vivid - Color Safe Bleach-Old Product liquid 1.0-2.5
Personal Care

got2b Beach Trippin Salt-Infusion Waving Spray, Pump Spray-06/29/2015

pump spray 0-5.0

Seventh Generation Baby Sunscreen, Broad Spectrum SPF-30-02/23/2012-Old Product

cream --