P. O. Box 370
Waynesville, NC SPECIFICATIONS FOR
28786
MAGNESIUM SULFATE CRYSTALS,
USA
TECH
Tel 828 452 4784
June 2, 2004
Fax 828 452 4786
Characteristics:
1. The material shall be colorless, solid at ambient temperatures, formed in small needle-like rhombic crystals and free of solid or
fibrous foreign matter that will require dissolved material to be filtered before being used.
2. During normal storage periods, up to six months, the material shall be free flowing when emptied from its鈥? shipping container. It
shall not be subject to caking or bridging.
Properties:
CHEMICAL
MgSO4 (as MgSO4 鈥? 7H20), minimum % 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??..鈥︹?︹?︹?︹?︹?︹??.鈥︹??.鈥︹??99.00
MgSO4, minimum % 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?? 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥︹??..鈥?..48.00
MgO, maximum % 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥?..鈥︹??..00.10
Chlorides (as CI) , maximum % 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??...鈥︹??..鈥?.00.06
Sodium Salts (as Na) , maximum, ppm 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥︹?︹??.鈥︹?︹?︹??.25
Potassium Salts (as K) , maximum, ppm 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥︹?︹??...鈥︹??25
Calcium Salts (as Ca) , maximum, ppm 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??..25
Total Heavy Metals, maximum, ppm ...鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??10
PHYSICAL
Color 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??..Colorless
Crystal Form 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.鈥︹?︹??.Rhombic (monoclinic)
Density, Bulk (approximate) lb/ft3 鈥︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹?︹??.65
Quality Assurance Provision:
GENERAL
The material specified herein shall be manufactured using acceptable industrial practices.
The material shall be guaranteed to meet chemical and physical properties specified herein.
RESPONSIBILITITY FOR TESTS & INSPECTIONS
Unless otherwise specified by purchaser, the supplier is responsible for providing a lot analysis of the material. Except as
otherwise specified, the supplier may utilize his own facilities or any commercial laboratory. Analysis鈥? are available for each
lot at an additional charge.
Packaging & Shipping
PACKAGING
Shall be accomplished in accordance with acceptable commercial practices for domestic or foreign shipments unless other-
wise indicated by the purchaser. It shall be the vendor鈥檚 responsibility to determine that packaging, as done, is adequate to
assure that all material shall arrive at destination in an uncontaminated condition and ready for intended use.
SHIPPING
Shall be accomplished in accordance with acceptable commercial practices for domestic or foreign shipment for this type
of product unless otherwise indicated by the purchaser.
Characteristics Discussion
EPSOM SALT is one of the most common forms of magnesium sulfate. EPSOM SALT is a hydrated salt with seven molecules of
water, so caking or bridging should not be a significant problem. Care should be taken, however, to protect the material if it is stored
in the granular form for long periods of time. EPSOM SALT is readily soluble in water and will yield a saturated 24.5 percent solution
of magnesium sulfate at storage temperatures of 66 鈥? 75 degrees F.
PRODUCERS OF MAGNESIUM SULFATE SINCE 1950
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