Soda Ash
Product Specification

Properties of Soda Ash

Property	Value
Chemical Name	Sodium Carbonate
Molecular Weight	105.989
Melting Point	851oC/1564oF
Specific Gravity, 20o/4oC	2.533
Specific Heat
25oC	0.249 cal/gm/oC
77oC	0.249 Btu/lb/oF
45oC	0.256 cal/gm/oC
Heat of Fusion, 854oC	75.5 cal/gm 135.9 Btu/lb
Heat of Formation, 25oC	–2550 cal/gm –4590 Btu/lb
Heat of Hydration
Monohydrate, Na2CO3 -H2O	30.0 cal/gm Na2CO3 54.0 Btu/lb Na2CO3
Heptahydrate, Na2CO3 -7H2O	156.4 cal/gm Na2CO3 281.5 Btu/lb Na2CO3
Decahydrate, Na2CO3 -10H2O	208.8 cal/gm Na2CO3 375.8 Btu/lb Na2CO3
Solubility
0oC	7 gms Na2CO3 in 100 gms H2O
100oC	44.7 gms Na2CO3 in 100 gms H2O
35.37oC (max.)	49.5 gms Na2CO3 in 100 gms H2O
Alkali Equivalent	100% Na2CO3 = 58.48% Na2O
Acid Equivalent	1lb. Na2CO3 = 0.6881 lb. HCI

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Always read and follow the product label and Material Safety Date Sheet (MSDS) that are shipped with each order.

The information presented herein is based on data considered to be accurate and that reflects the requirements of the OSHA Hazard Communication Standards in effect as of the date of preparation of this Product Specification Sheet. However, no warranty or representation, express or implied, is made as to the accuracy or completeness of the foregoing data and safety information. In addition, no responsibility can be assumed by vendor for any damage or injury resulting from abnormal use, from any failure to adhere to recommended practices or from any hazards inherent in the nature of the product.

© 2001. JCI Jones Chemicals, Inc. All Rights Reserved.