1.1.2 Brief Recommendations for Use

2.2 Label elements

Information (GOST 31340-07) Silicon-calcium [1]. For deoxidizing of steels and alloys, cast iron modification, and other purposes [1]. “Chelyabinsk Electrometallurgical Integrated Plant joint- stock company” (ОАО“ChEMK”) 454081, Chelyabinsk, Geroev Tankograda Street, 80-P, Bld. 80. (351) 772-66-09 (351) 772-96-19 info@chemk.ru Moderately dangerous substance concerning the influence on the organism, the class of hazard – 3 The water influences the alloy with the release of the fire- and explosion-hazardous gases: hydrogen and acetylene. Quantity of released gases increases under moistening the alloy, the calcium content increase, and the decrease of alloy particle sizes [1, 9, 22]. Hygiene regulations for the working zone air are not specified [2].

Hazard pictograms

Flame Exclamation mark

Signal word

Summary of hazard properties: Inflammable substance. Contact with skin may cause the irritation. Contact with eyes causes the apparent irritation. Danger preventive measures: Keep from sources of inflammation, heat, sparks, and open fire. While using this product, do not smoke, do not drink, and do not eat. Use the explosive-proof equipment and explosion-proof lighting. Keep from static electricity. Avoid inhaling dust, use gloves and eye/face protection means. Do not take away the dirty overalls from the work places. After working, wash up carefully hands. When it contacts the skin: remove the dirty working clothes; wash up skin with the large amount of water and soap. If there is the irritation and redness, appeal for medical aid. Silico-calcium Safety Data Sheet Registration No. 00186507.08.25757 Page 4 of 14 GOST 4762-71 (ST SEV 496-87) Valid until 05 July 2016 Launder the dirty working clothes before the reuse. Contact with eye: wash up carefully eyes with water for several minutes. Remove contact lenses, if you use them, and if it is easily made. Continue to wash up the eyes. If irritation does not disappear, appeal for medical aid. Extinguish with powders. Avoid the product release in the environment [17]. 3. Content (Information about Component) 3.1 General Information about Product 3.1.1 Chemical name: None, the alloy with specified composition [1]. (IUPAC) 1.3 Chemical Formula: None, the alloy with the specified composition [1]. 3.1.3 General characteristics of composition: Alloy of calcium and silicon. It is supplied as lumps of (considering the grade assortment, the impurity indications, following size category: and functional additives which influence on the product - 1st class (lump sizes up to 1 mm) hazard; production process) - 2nd class (lump sizes from 1 to 20 mm) - 3rd class (lump sizes from 20 to 200 mm) [1]. 3.2 Ingredients (name, CAS No., EC No. (if available), weight percent, MPCwz, classes of hazard, references for data sources) Ingredients [1] Weight percent, % MPCwz, mg/m3 Class of hazard CAS No. EC No. [1] [2] [19] Silico-calcium, Up to 100 Not specified No 12022-95-6 234-670-2 including: - Silicon Not less than 45 6/2 3 7440-21-3 231-130-8 (depending from (silicon dioxide with the grade) content 10-70%) - Calcium Not less than 10 Not specified No 7440-70-2 231-179-5 (depending from grade) Note Depending from the grade, silico-calcium contains not more than 2.0% aluminum, 1.0% carbon, 0.04% phosphorus [1].