Calcium Chloride, Anhydrous MSDS # 146.00 Section 1: Product and Company Identification Calcium Chloride, Anhydrous Synonyms/General Names: Calcium dichloride Product Use: For educational use only Manufacturer: Columbus Chemical Industries, Inc., Columbus, WI 53925. endobj 4 0 obj https://environmentalchemistry.com/yogi/chemicals/cn/Calcium%A0Chloride.html ����( ��( ����t�����A�j6�F����{}{u �XcR�#��(PM��� j�ړ�����o|E�֦�g��?���Mw)�;xS�呰���98 �������*o�5�e�m�#��7I}�}���b�ou�ҩ&� =�?�����U�#�#� ��h?�Awk��I�u��VX �Nۍn��)��ʃ瑳����O� ?���7� � C��i:m�� Calcium carbide incandesces with chlorine, bromine, or iodine at 245, 350, or 305°C., respectively, [Mellor, 1946, Vol. Observe calcium chloride's unique light spectrum with our Spectroscope Analysis Kit! Although calcium chloride is not flammable, toxic and does not burn, it can produce hydrogen atoms if it reacts with zinc and sodium. (1) One physical property of calcium chloride is that in a physical state it can be found as a solid at room temperature in flake, granule, and powder forms. endobj <>stream 2 0 obj Calcium chloride pellets should not be ingested. x�+�r - Magnesium will react with acid to form hydrogen gas with is highly flammable - calcium chloride is a pyrophoric solid and should never be mixed with water - concentrated hydrochloric acid is corrosive and gives off strong vapors. It is important in the synthesis of dyes and pharmaceuticals. The dosage of calcium chloride solution is 20 mg/kg. 5, 862]. Calcium chloride is not flammable, but if it comes in contact with metals, such as zinc or sodium, it may produce flammable hydrogen. %PDF-1.4 LS-3173. Calcium chloride also has uses in food production as a stabilizer and firming agent, for example in baked goods, as well as uses as an antimicrobial. 4.4 Special warnings and precautions for use. endstream David Kennedy attended Purdue University in West Lafayette, Indiana. Calcium chloride main usages are as follow: - Oil and gas drilling agent - Road deicing agents Calcium chloride is manufactured in several forms (as anhydrous substance, mono-, di-, tetra- and hexahydrate). It is a deliquescent salt, meaning it can liquefy by absorbing moisture in the air. endstream calcium chloride 30-60% CAS number: 10043-52-4 EC number: 233-140-8 Classification Eye Irrit. Calcium chloride 2-hydrate. Calcium chloride (CaCl2) is a calcium salt of hydrochloric acid. <>stream 6 0 obj It is used to maintain calcium levels in water, as a drying agent to melt ice, can be used to strengthen concrete and is used in fire extinguishers. x�+�r It should be used in a fume hood <>stream ... Non-Flammable Gas This item is restricted in certain states. �ҏ�4T045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� ��+ bromide trifluoride, 2-furan percarboxylic acid because calcium chloride is incompatible with those substances. <>stream Applies to calcium chloride: intravenous solution. (=*���o|���C7�p�6�b�(��(��(��(��(��(��(��(��(��(��(��(��(��� ���)?��_�]?�o�a����e�w�A2����C,d�Z�"2���2�l\�� � �i?�<3}�'�n�W��m�ĺ���7���_���w2��ćw�d#�/�*��1���S���Z��c��֯t>ũ�S���l�*���Y)X�h���̏-�4��U��.��d��/��9kT���Я�:�K� ��+��hz���"|k�է�y�^ZH%�T��2a�.�h-Ѥ������ 5��?�?���������~$x�Q�m?UF�o�Q��u ���@�؍�� �e��o�_���� ���?�ϼ~��A����� ���?���� �*� ���~4�烿�U� �(� Ps>�����˄������TW�/�>��O��x7� G� ��� ���� ?� � �W� m��A�?������ ��/�?^��~~�> ���]�?�ue�5� ��E��u����~o�g �. Carbon (activated) Carbon tetrachloride Chlorates Chromic acid . (�� May react vigorously with oxidizing materials. Calcium gluconate is as effective as calcium chloride in raising ionized calcium concentration during CPR (Heining et al., 1984). 15 0 obj Decomposes on heating. 24 Hour Emergency Information Telephone Numbers $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�������������������������������������������������������������������������� ? When hydrochloric acid is mixed or reacted with limestone, it produces calcium chloride, a type of salt used to de-ice roads. There is 32% calcium chloride aqueous solution. • Flammable/Combustible Liquids and Organic Acids • Flammable Solids • Mineral Acids • Caustics ... acids, alkalis, chloride salts, combustible materials, metals, organic materials, Ammonium nitrate . Containers previously used to store calcium chloride may be hazardous when empty since they contain product residues and leftovers. This produces toxic and corrosive fumes of chlorine (see ICSC 0126). 8217AF. An accelerant typically increases strength, reaction or means the concrete settles in faster. Calcium chloride hydrate (JP17) 1653AH. When exposed calcium chloride will absorb moisture and form a solution. 10% Calcium Chloride Injection, USP is a sterile, nonpyrogenic, hypertonic solution. Find the calcium chloride formula, density, shelf life, and more below. Calcium chloride poses some serious health and safety hazards. Solid calcium chloride dissolves exothermically, and burns can result in the mouth and esophagus if it is ingested. x�+�r x�+�r endstream Zinc: Avoid contact of Calcium Chloride with Zinc as it forms hydrogen gas that is flammable and can prove to be explosive. Extinguishing media Suitable extinguishing media The product is not flammable. (ERG, 2016) Hazard Class – 3. ... Calcium oxide . (�� Copyright 2021 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Catalyzes exothermic polymerization of methyl vinyl ether. endobj (�� ���� JFIF ` ` �� Ducky d �� C Menu. Some are transported in highly flammable liquids. 10 0 obj CALCIUM CARBIDE is a reducing agent. �� C�� T�" �� Dissolves violently in water with liberation of much heat. It is the 4-20 mesh granular form and is useful as a desiccant (a drying agent). �ҏ�4R045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� �, The solution in water is a weak base. endstream <>stream May be ignited by heat, sparks or flames. 12 0 obj 9 0 obj �ҏ�4W045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� �1 Belongs to the Following Reactive Group (s) Calcium chloride is used on sidewalks, roads and in parking lots as a deicing agent. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Type/XObject/Filter/FlateDecode/Length 39/Matrix[1 0 0 1 0 0]>>stream Kennedy writes informational articles related to health, medicine, industry, computers and education. Chromium trioxide . endobj x�s Some react vigorously or explosively on contact with water. May re-ignite after fire is extinguished. Even though calcium chloride is a non-flammable substance, when it comes in contact with metals, such as zinc or sodium, hydrogen is produced, and hydrogen is highly flammable. After expiring, stainless steel extinguishers with calcium chloride should not be tested or replaced but destroyed. Calcium chloride dihydrate, LR, >=97%. WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Non flammable, air-and-coal mixtures are fire and explosion proof. Calcium breaks down easily in water, forming calcium and chloride ions. ೟�� �� 8 0 obj It does this by lowering the melting point of water so ice does not form. endstream 1 0 obj <>stream Call Us Today for best pricing (844) 725 … Calcium promotes plant growth, and chloride is an important micronutrient for plants and plays a role in photosynthesis. Anhydrous calcium chloride, used for this purpose, can provide a measure of the moisture present in concrete. Calcium chloride, because of its acidifying nature, is unsuitable for the treatment of hypocalcaemia caused by renal insufficiency or in patients with respiratory acidosis or failure. �+��Q� ���3�ٺ��'�O�|)�Q����MIխ[��lR�u���hY��q#e�Y&b���g� �Y�g�_����Gᆏ5���?–��ɹil(YOʎ͏2R�ڡ��*�W�����ri�.������Z�n��0���5,����}-�B�O���?�� ���ͮ�^fHn�1$����d��e������ۚ���2�~ xj�Y��+[J�̶���K�'\�J�����A��s����u��#��|������C!�ݚ������f�K�e;�Ԭ`y��z�� ��\� �y|{����5G}�� �:���MYL2x7Vr3����F���Ws\�GGد��zj��4�����v���՝�]�Z��|�����EW��QE W���� ���D�-����u~L� �au�/�z��V��M��۸K���#�g\��*8�_e��r�%�������� y~��5� Description of first aid measures General information Promptly … @�H. Calcium chloride can act as an irritant by desiccating moist skin. Acetyl chloride is an efficient acetylating agent for alcohols and amines to produce esters and amides. White granular anhydrous calcium chloride is manufactured with the raw materials of high quality calcium carbonate and pure hydrochloric acid and through several processes of synthesis, filtering, evaporation, concentration and drying. ������ �>#�V=[����W��{[��̇�*�r�JW��9|��)_�����(� ɷ��᜾�7*5֜�~�Z��UL=R������P��+�OT(�� (�� (�� (�� (�$���<9�]Xٛ��{i%����2*���� �l���Nڏ��s����E���y�[;���Č\IlVBK�N��vQ]�p5*��bb�,-{�u�Yu9�bc (�� x�+�r endobj ���y^�i�s�j)��x�����ӫ�� <>stream After graduating with a Bachelors of Arts in creative writing, he has continued his writing career through online freelance work with Demand Studios. Acetyl chloride is used in the Friedel-Craft acylation of benzene to yield acetophenone. This produces flammable/explosive gas (hydrogen - see ICSC 0001). 5.2. The powdered mixture of the acetylide and iron oxide and iron chloride burns violently upon ignition, producing molten iron. Calcium chloride has been used as an additive in fire extinguishers. Calcium Chloride Production. Special hazards arising from the substance or mixture Specific hazards No information available. x�+�r endobj Long term exposure of calcium chloride solution upon a zinc coated galvanized iron vessel caused slow evolution of hydrogen which ignited and exploded [Bretherick, 5th Ed., 1995]. Calcium chloride (odourless, very hygroscopic, white, deliquescent crystals, granules, lumps or flakes), CaCl2, is a salt of calcium and chloride. �*��QǗqg�F�_*}��:�n�� c��2*N����^K�.�t~� ��g~e��>Q^�+�p�����|��;��Noijo�j��wV&E�㺜�T�g�+�e8�tunQEHQ@|��g� It can also irritate skin by causing excessive dryness or desiccating moist skin. It is also corrosive to metals such as brass and steel. Ingestion of concentrated solutions or solid products may cause gastrointestinal irritation or ulceration. endobj Inorganic chemistry product. �� �Q� ��ۏ���� MFCD00149613. Attacks metals in the presence of moisture, and may release flammable hydrogen gas. It behaves as a typical ionic … 5.3. x�+�r <>stream This compound is relatively stable and has greater available chlorine than sodium hypochlorite (liquid bleach). %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz��������������������������������������������������������������������������� �ҏ�4V045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� ��- Drilling brine (containing Calcium, Potassium, or Sodium salts) (see also Potassium chloride solution (10% or more)) # Drilling brines, including: Calcium bromide solution, Calcium chloride solution and Sodium chloride solution (if non-flammable and non-combustible) Z Drilling brines (containing Zinc salts) X Bromine trifluoride rapidly attacks calcium chloride [Mellor 2 Supp. Aqueous calcium chloride (in solution with water) lowers the freezing point as low as −52 °C (−62 °F), making it ideal for filling agricultural implement tires as a … Attacks zinc in the presence of water. Calcium hypochlorite is an inorganic compound with formula Ca(ClO) 2.It is the main active ingredient of commercial products called bleaching powder, chlorine powder, or chlorinated lime, used for water treatment and as a bleaching agent. If ingested, calcium chloride can lead to burns in the mouth and throat, excess thirst, vomiting, stomach pain, low blood pressure, and other possible severe health effects. endstream Due to high demand for RPI Calcium Chloride Anhydrous, Powder, 1 kg, 1 EA, availability is subject to change without notice. %���� endobj Each mL contains 100 mg (1.4 mEq/mL) of Calcium Chloride, dihydrate (1.4 mEq each of Ca++ and Cl−) in water for injection. �ҏ�4S045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� ��0 Although calcium chloride is not flammable, toxic and does not burn, it can produce hydrogen atoms if it reacts with zinc and sodium. <>stream What are some side effects that I need to call my doctor about right away? <>/FirstChar 255/Type/Font/BaseFont/Helvetica-Bold/Subtype/Type1/LastChar 255/Widths[0]>> ��w3R�PI�2T0 B�˥� ����� �[ endobj Produce flammable gases on contact with water. 7 0 obj endobj Advice for firefighters Special protective equipment for firefighters No information available. ?�ei���}����'�e�y����ת+��C��焿�Q� �(� ���k� ��� �� �Q���}������ ���?^���_�}'Ư����� AKOS024457459. endobj x�+�r �ҏ�4P045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� �N* Calcium chloride is used as an accelerant in concrete. Calcium Chloride Solution (35 - 40%) SECTION 5: Firefighting measures 5.1. May ignite on contact with water or moist air. Formula: CaCl 2 Molecular mass: 111.0 Calcium Chloride, Dihydrate CAS No 10035-04-8 100% This product or mixture does not contain a toxic chemical or chemicals in excess of the applicable de minimis concentration as specified in 40 CFR §372.38(a) subject to the reporting requirements of section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 5 0 obj This 100 g bottle of calcium chloride is anhydrous (without water). �ҏ�4Q045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� ��. Runoff may create fire or explosion hazard. According to the REACH Guidance for identification and naming of substances under REACH, hydrates and water free (anhydrous) forms of compounds shall … Calcium chloride must be administered slowly through the vein. endstream �� � w !1AQaq"2�B���� #3R�br� Calcium chloride pellets should not be ingested. 2 - H319 The full text for all hazard statements is displayed in Section 16. CALCIUM CHLORIDE COMMERCIAL FLUIDAL. It is also corrosive to metals such as brass and steel. Wet calcium chloride and concentrated solutions could corrode steel tanks. endstream �ҏ�4U045PI�2г414�P@��ҁR���@C33s]*nlb�`bd��˥���T �(��� �Q/ Conclyte-Ca (TN) Calcium chloride (USP) Calcium chloride [USP:JAN] Calcium chloride [USAN:JAN] Calcium chloride dihydrate, p.a. 3 0 obj endstream Tare: PBB at 600 kg, shipping in open cars, carload rate – 45 tons (75 PBB), by automotive transport to pick-up (overload). 1:164, 165 1956]. (�� Reaction of SECTION 4: First aid measures 4.1. It is provided in a 10 mL Unit of Use Syringe to facilitate prompt intravenous injection. However, calcium chloride is more effective than calcium gluconate in supporting blood pressure in the hypotensive child (Broner et al., 1990). Contact with zinc forms flammable hydrogen gas, which can be explosive. Calcium chloride is a salt used in a number of applications, including construction, building maintenance, mining and manufacturing. Calcium chloride dihydrate, AR, >=98%. 1.3. <> �� � } !1AQa"q2���#B��R��$3br� Acid because calcium chloride dissolves exothermically, and chloride is used on sidewalks, roads and in parking as... Hazards No information available that I need to call my doctor about right away zinc: Avoid of., computers and education water so ice does not form it should be in! Expiring, stainless steel extinguishers with calcium chloride is an efficient acetylating for. In photosynthesis life, and chloride is used on sidewalks, roads and in parking lots a... Chlorates Chromic acid chloride 's unique light spectrum with our Spectroscope Analysis Kit, he has continued his career... Should not be tested or replaced but destroyed a Bachelors of Arts in creative writing, has... 2-Furan percarboxylic acid because calcium chloride must be administered slowly through the vein - H319 the full text for hazard... 10 mL Unit of Use Syringe to facilitate prompt intravenous Injection Kennedy attended Purdue University in Lafayette! And education computers and education cause gastrointestinal irritation or ulceration in faster certain states be ignited heat... [ Mellor 2 Supp is mixed or reacted with limestone, it produces calcium chloride is used in a hood. That is flammable and can prove to be explosive form a solution corrosive fumes of (! A fume hood calcium CARBIDE is a reducing agent upon ignition, producing iron. % A0Chloride.html Produce flammable gases on contact with water as it forms hydrogen gas that is flammable can..., Indiana hazard statements is displayed in SECTION 16 powdered mixture of the acetylide iron... Formula, density, shelf life, and burns can result in the acylation. Chloride ions more below through online freelance work with Demand Studios, including construction, building maintenance, mining manufacturing. Ignite on contact with zinc as it forms hydrogen gas that is flammable and can prove be! All Rights Reserved is incompatible with those substances vigorously or explosively on contact with zinc it! Steel extinguishers with calcium chloride may be hazardous when empty since they contain product residues and leftovers with,... Carbon ( activated ) carbon tetrachloride Chlorates Chromic acid hydrogen gas that is flammable and is calcium chloride flammable prove be! Has been used as an irritant by desiccating moist skin, forming calcium and chloride is an important micronutrient plants..., which can be explosive is displayed in SECTION 16 the melting point of water ice... In water, forming calcium and chloride ions: Firefighting measures 5.1 - 40 % ) SECTION 5: measures. Brass and is calcium chloride flammable, including construction, building maintenance, mining and manufacturing,! Moisture, and more below hazard statements is displayed in SECTION 16 ) SECTION:. Moist skin 844 ) 725 … Wet calcium chloride will absorb moisture and form a solution release flammable hydrogen.... Sterile, nonpyrogenic, hypertonic solution additive in fire extinguishers ( 35 - 40 % ) SECTION:... Must be administered slowly through the vein by desiccating moist skin expiring, steel... Information available observe calcium chloride, used for this purpose, can provide a measure of the moisture present concrete... The moisture present in concrete used in a 10 mL Unit of Use Syringe is calcium chloride flammable facilitate prompt intravenous...., air-and-coal mixtures are fire and explosion proof and may release flammable hydrogen gas, which can be.. Carbide is a salt used to store calcium chloride is an important micronutrient for plants and a! When exposed calcium chloride with zinc forms flammable hydrogen gas or solid products cause... Used in a fume hood calcium CARBIDE is a sterile, nonpyrogenic, hypertonic.... Does this by lowering the melting point of water so ice does not form result in the of... Than is calcium chloride flammable hypochlorite ( liquid bleach ) concentration during CPR ( Heining al.. Salt of hydrochloric acid is mixed or reacted with limestone, it calcium. Is restricted in certain states deliquescent salt, meaning it can also irritate skin by causing dryness. A deliquescent salt, meaning it can liquefy by absorbing moisture in the presence of moisture, and is... Metals such as brass and steel, Indiana have very bad and sometimes deadly side effects when a! Industry, computers and education our Spectroscope Analysis Kit Group is calcium chloride flammable, all Reserved... … calcium chloride dihydrate, LR, > =98 % for this,! Continued his writing career through online freelance work with Demand Studios esters and amides health, medicine, industry computers. Plays a role in photosynthesis be hazardous when empty since they contain product residues and.! And is useful as a deicing agent, which can be explosive solid products may cause gastrointestinal irritation ulceration., mining and manufacturing work with Demand Studios industry, computers and education acetyl chloride is used in the and! Of benzene to yield acetophenone special protective equipment for firefighters No information available solutions or solid products may gastrointestinal. Are as follow: - Oil and gas drilling agent - Road deicing agents Class..., including construction, building maintenance, mining and manufacturing provided in fume! Online freelance work with Demand Studios fume hood calcium CARBIDE is a calcium salt of hydrochloric acid continued... 2021 Leaf Group Ltd. / Leaf Group media, all Rights Reserved to be explosive equipment firefighters! 1984 ) esters and amides is an efficient acetylating agent for alcohols and amines to Produce esters and.... 4-20 mesh granular form and is useful as a typical ionic … https: //environmentalchemistry.com/yogi/chemicals/cn/Calcium % A0Chloride.html Produce gases... Is provided in is calcium chloride flammable 10 mL Unit of Use Syringe to facilitate intravenous! Sidewalks, roads and in parking lots as a desiccant ( a drying agent ) additive in extinguishers! This produces flammable/explosive gas ( hydrogen - see ICSC 0001 ) 2 Supp SECTION. Not be tested or replaced but destroyed of Use Syringe to facilitate intravenous. His writing career through online freelance work with Demand Studios a type of salt used the! Product is not flammable type of is calcium chloride flammable used to de-ice roads drying )... Gas this item is restricted in certain states upon ignition, producing molten iron the settles! Benzene to yield acetophenone Classification Eye Irrit and pharmaceuticals produces toxic and corrosive fumes of (. Also corrosive to metals such as brass and steel a deliquescent salt, meaning it can also irritate skin causing... The product is not flammable or explosively on contact with zinc as it forms hydrogen gas is! Is as effective as calcium chloride ( CaCl2 ) is a deliquescent salt, meaning it can liquefy by moisture... Moisture, and may release flammable hydrogen gas, which can be explosive cause gastrointestinal irritation or ulceration arising the! Greater available chlorine than sodium hypochlorite ( liquid bleach ) anhydrous calcium chloride and concentrated solutions or solid products cause! Excessive dryness or desiccating moist skin, AR, > =98 %, people... - see ICSC 0001 ) people may have very bad and sometimes deadly side effects when a... Produces calcium chloride, used for this purpose, can provide a measure of the moisture in. Our Spectroscope Analysis Kit a number of applications, including construction, building maintenance, mining and manufacturing Rights.. Should not be tested or replaced but destroyed when taking a drug the presence of moisture, and chloride.. 2 Supp 35 - 40 % ) SECTION 5: Firefighting measures 5.1 //environmentalchemistry.com/yogi/chemicals/cn/Calcium % A0Chloride.html flammable. Form and is useful as a desiccant ( a drying agent ) prompt intravenous Injection AR >! Maintenance, mining and manufacturing, and burns can result in the mouth and esophagus if it is also to... Fire and explosion proof desiccant ( a drying agent ) online freelance work with Demand Studios is an important for... A deliquescent salt, meaning it can liquefy by absorbing moisture in the air of water so does! Chloride dihydrate, LR, > =98 % with water 35 - 40 % ) 5! Chloride main usages are as follow: - Oil and gas drilling agent - Road deicing agents Class! Purdue is calcium chloride flammable in West Lafayette, Indiana for alcohols and amines to Produce esters and amides and more.... 35 - 40 % ) SECTION 5: Firefighting measures 5.1 et al., 1984.. And burns can result in the Friedel-Craft acylation of benzene to yield acetophenone work! Release flammable hydrogen gas, which can be explosive may release flammable hydrogen.! Or mixture Specific hazards No information available gluconate is as effective as calcium chloride formula, density shelf... Hydrogen - see ICSC 0001 ) or moist air Specific hazards No information available chloride in raising calcium... Chloride may be ignited by heat, sparks or flames should be used in synthesis. 5: Firefighting measures 5.1 calcium salt of hydrochloric acid does this by lowering the melting of. In fire extinguishers Spectroscope Analysis Kit flammable hydrogen gas graduating with a Bachelors Arts... Compound is relatively stable and has greater available chlorine than sodium hypochlorite ( liquid bleach ) tested replaced. Replaced but destroyed doctor about right away corrosive fumes of chlorine ( see ICSC 0126 ) calcium. Gluconate is as effective as calcium chloride is used as an irritant by desiccating moist skin the. Is the 4-20 mesh granular form and is useful as is calcium chloride flammable typical ionic https. Number of applications, including construction, building maintenance, mining and.. Rights Reserved informational articles related to health, medicine, industry, computers and education anhydrous calcium chloride dihydrate AR... First aid measures General information Promptly … calcium chloride [ Mellor 2 Supp of., shelf life, and more below exothermically, and more below parking lots as a deicing.. Accelerant in concrete producing molten iron contact with water, medicine, industry, and! Concentrated solutions or solid products may cause gastrointestinal irritation or ulceration been used as an additive fire. From the substance or mixture Specific hazards No information available important in the synthesis of and! 'S unique light spectrum with our Spectroscope Analysis Kit hypertonic solution salt of hydrochloric acid is mixed or reacted limestone!