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Calcıum D-gluconate 500 gr

  • CAS Number 299-28-5

  • Synonym: 2,3,4,5,6-Pentahydroxycaproic Acid hemicalcium salt, Gluconic acid hemicalcium salt

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Gold Etchant 3.8 lt

Gold etchant



Chemical Properties





Storage & Sensitivity

Ambient temperatures.


Miscible with water.


High purity, low sodium and 0.2 micron filtration system for semiconductor and microelectronic applicationsGold etchant is a selective general-purpose etchant for gold. It is compatible with negative and positive photoresists.


Light sensitive. Incompatible with reducing agents, metal powders, ammonia and alkali metals.

Literature References


Wu, X.; Geisler, P.; Krauss, E.; Kullock, R.; Hecht, B. Silica-gold bilayer-based transfer of focused ion beam-fabricated nanostructures. Nanoscale 2015, 7 (39), 16427-16433.

Zhu, Z.; Lu, J. J.; Almeida, M. I. G. S.; Pu, Q.; Kolev, S. D.; Liu, S. A microfabricated electroosmotic pump coupled to a gas-diffusion microchip for flow injection analysis of ammonia. Microchim. Acta 2015, 182 (5), 1063-1070.


GHS Hazard and Precautionary Statements

Hazard Statements: H333-H372-H401

May be harmful if inhaled. Causes damage to organs through prolonged or repeated exposure. Toxic to aquatic life.

Precautionary Statements: P260-P264-P270-P314-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Get medical advice/attention if you feel unwell. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Harmonized Tariff Code




105,00 +KDV
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Sodium Hydride Suspension 100 gr

Key Spec Table

CAS # EC Number Hill Formula Chemical Formula Molar Mass
7646-69-7 231-587-3 HNa NaH


Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s) H260: In contact with water releases flammable gases which may ignite spontaneously.
H314: Causes severe skin burns and eye damage.
Precautionary Statement(s) P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
P402 + P404: Store in a dry place. Store in a closed container.
Signal Word Danger
Storage class 4.3 Hazardous materials, which set free flammable gases upon contact with water
WGK WGK 1 slightly hazardous to water
Disposal 26
Alkali and alkaline-earth metals should be taken up in an inert solvent and neutralized by adding 2-propanol (Cat. No. 100995) dropwise with stirring. Should the reaction be more violent than expected, conversion should be carried out with tert-butanol or octanol. Caution: This reaction produces hydrogen, which can form explosive mixtures; take necessary precautions. When the reaction has ceased, add water dropwise; neutralize; container D. In the case of alkali or alkaline-earth borohydrides, add methanol (Cat. No. 106008) with stirring; in the case of alkali or alkaline-earth amides and hydrides, organoaluminium and organotin hydrides, add 2-propanol (Cat. No. 100995) dropwise. The substances, which are usually in solid form, should be previously suspended in an ether! When the respective reaction has ceased, hydrolize with water; then neutralize. Container D or E. Lithium aluminium hydride must also be destroyed by slurrying in an ether. Under an inert gas and with thorough stirring, add dropwise a 1:4 mixture of ethyl acetate (Cat. No. 822277) and the ether used to prepare the slurry. Always ensure thorough mixing (stirring)! Container A.


Safety Information
Hazard Symbols Hazard SymbolsCorrosive
Hazard SymbolsFlammable
Categories of danger highly flammable, corrosive
R Phrase R 15-34
Contact with water liberates extremely flammable gases.Causes burns.
S Phrase S 7/8-26-36/37/39-43-45
Keep container tightly closed and dry.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of fire, use sand. Never use water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).


Storage and Shipping Information
Storage Store below +30°C.


Transport Information
Declaration (railroad and road) ADR, RID UN 1427 , 4.3, I
Declaration (transport by air) IATA-DGR UN 1427 , 4.3, I
Declaration (transport by sea) IMDG-Code UN 1427 , 4.3, I


Assay (by gasvolumetry) ≥ 57.0 %

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