ASTM C911-99e1

Standard Specification for Quicklime, Hydrated Lime, and Limestone for Chemical Uses

SCOPE
1.1 This specification covers lime and limestone products suitable for chemical uses as shown in . The type designations signify the following:Limestone, high-calcium-CLLimestone, dolomitic-DLLimestone, magnesian-MLQuicklime, high-calcium-CQQuicklime, dolomitic-DQQuicklime, magnesian-MQHydrated lime, high-calcium-CHHydrated lime, dolomitic-DHHydrated lime, magnesian-MHHydrated lime, by-product-BH
Note 1—Lime is used in environmental systems when the control of factors influencing the environment such as gases, liquids and solids is required.
1.2 The buyer shall designate the use, as listed in Table 1, and may specify one or more of the type designations in 1.1.

General Information

• Status: Historical
• Publication Date: 09-Jun-1999
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C07 - Lime and Limestone
• Drafting Committee: C07.02 - Specifications and Guidelines

Relations

• Replaces: ASTM C911-99 - Standard Specification for Quicklime, Hydrated Lime, and Limestone for Chemical Uses
• Effective Date: 10-Jun-1999
• Replaced By: ASTM C911-05 - Standard Specification for Quicklime, Hydrated Lime, and Limestone for Chemical Uses
• Effective Date: 01-May-2005
• Referred By: ASTM C25-19 - Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime
• Effective Date: 10-Jun-1999
• Referred By: ASTM D5050-08(2023) - Standard Guide for Commercial Use of Lime Kiln Dusts and Portland Cement Kiln Dusts
• Effective Date: 10-Jun-1999
• Referred By: ASTM E1266-20 - Standard Practice for Processing Mixtures of Lime, Fly Ash, and Heavy Metal Wastes in Structural Fills and Other Construction Applications
• Effective Date: 10-Jun-1999

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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e1
Designation: C 911 – 99
Standard Specification for
Quicklime, Hydrated Lime, and Limestone for Chemical
1
Uses
This standard is issued under the fixed designation C 911; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1
e NOTE—Note 9, Note 10, and Note 11 were editorially re-inserted February 2002.
1. Scope and are on the basis of the weight of sample taken at the place
of manufacture, except as noted in footnote B after the
1.1 This specification covers lime and limestone products
requirement. In this case, the requirement is on a moisture and
suitable for chemical uses as shown in Table 1. The type
carbon dioxide-free basis.
designations signify the following:
Limestone, high-calcium—CL
4. General Requirements
Limestone, dolomitic—DL
Limestone, magnesian—ML
4.1 Quicklime shall be reasonably free of unslakable resi-
Quicklime, high-calcium—CQ
dues and shall be capable of disintegrating in water to form a
Quicklime, dolomitic—DQ
suspension of finely divided material. Rapidity of slaking is
Quicklime, magnesian—MQ
Hydrated lime, high-calcium—CH
generally a desirable quality.
Hydrated lime, dolomitic—DH
4.2 The amount of residue shall not exceed that stated in the
Hydrated lime, magnesian—MH
physicalrequirementsofTable1orasagreeduponbetweenthe
Hydrated lime, by-product—BH
manufacturer and the purchaser (the residue is the amount of
material retained on the screen).
NOTE 1—Lime is used in environmental systems when the control of
factors influencing the environment such as gases, liquids and solids is
5. Sampling and Inspection
required.
5.1 Conduct the sampling, inspection, rejection, retesting,
1.2 The buyer shall designate the use, as listed in Table 1,
packing, and marking in accordance with MethodsC50.
and may specify one or more of the type designations in 1.1.
NOTE 2—Rags are cooked for the manufacture of paper in a digester
under steam pressure with lime or with lime and soda ash. They are then
2. Referenced Documents
washed to eliminate as much of the noncellulose material as possible. A
2.1 ASTM Standards:
standard composition without rejection limits is specified for the reason
C25 Test Methods for Chemical Analysis of Limestone,
that lime of either higher or lower total oxides, available lime, calcium
2
Quicklime, and Hydrated Lime
oxide, or calcium hydroxide than the standard, may safely be used under
suitable conditions for the purpose herein specified, depending primarily
C50 Methods of Sampling, Inspection, Packing, and Mark-
2
upon economic considerations. In the present state of the art, it is believed
ing of Lime and Limestone Products
that the more serviceable type of specification for the product herein
C 51 Terminology Relating to Lime and Limestone (as
specified is that which defines a reasonable standard rather than one that
2
Used by the Industry)
fixes actual rejection limits. It is generally recognized that, other things
C110 Test Methods for Physical Testing of Quicklime,
being equal, lime meeting this standard is preferable to lime that does not,
2
Hydrated Lime, and Limestone
andlimesurpassingthestandardshouldbeconsideredofpremiumquality.
C 400 Test Method for Quicklime and Hydrated Lime for
NOTE 3—Lime is used in the “milk of lime” or “tank” system of sulfite
2
pulp manufacture for making the cooking liquor. The milk of lime is held
Neutralization of Waste Acid
in solution or suspension in a series of tanks equipped with suitable
3. Chemical Composition and Physical Properties agitators. The sulfur dioxide (SO ) is forced or drawn through these tanks
2
successively. In some cases, the tanks are built on top of each other in the
3.1 The requirements for quicklime, hydrated lime, and
form of a tower. The contents of the first tank are drawn off when the
limestone for the designated end uses are as shown in Table 1,
liquor has reached a certain strength (3.5 to 6 % total SO ) and the
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contents of the second and third tanks progress to the first and second
tanks respectively.The third tank is again charged with fresh milk of lime.
1
This specification is under the jurisdiction of ASTM Committee C07 on Lime
There are other systems of absorption that provide for continuous instead
and is the direct responsibility of Subcommittee C07.03 on Industrial Uses.
ofintermittentoperation.Thefunctionofthelimeistofurnishthebasefor
Current edition approved June 10, 1999. Published July 1999. Originally
the formation of the bisulfites of calcium and magnesium.
published as C 911 – 79. Last previous edition C 911 – 96.
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Annual Book of ASTM Standards, Vol 04.01.
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