Sodium tungstate dihydrate

10213-10-2
Sodium tungstate dihydrate

浜у搧浠嬬粛锛欬/div>

浜у搧璇存槑

鍒嗘瀽璇存槑

Assay (thermogravimetric): ≥ 98 %
Identity (x-ray diffraction): passes test
Free alkali (as NaOH): ≤ 0.1 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO?): ≤ 0.02 %
Total nitrogen (N): ≤ 0.005 %
Fe (Iron): ≤ 0.002 %

娉曞緥淇℃伅

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鍩烘湰淇℃伅

缁忛獙(瀹為獙)鍒嗗瓙寮廃/td>	Na2O4W · 2H2O
鍒嗗瓙閲廃/td>	329.85
MDL缂栧彿	MFCD00149190
EC绱㈠紩鍙饵/td>	236-743-4

浜у搧鎬ц川

璐ㄩ噺姘村钩	200
娴嬪畾	≥98% (thermogravimetric)
褰㈠紡	crystals
鏁堣兘	1190 mg/kg LD50, oral (Rat)
pH鍊?閰哥⒈搴?	8-9 (20 鈩? 50 g/L in H2O)
mp	100 鈩 (Elimination of water of crystallisation)
婧惰В鎬?/td>	730 g/L
瀵嗗害	3.23 g/cm3at 20 鈩傸/td>
鍫嗙Н瀵嗗害	1600 kg/m3
鐥曢噺闃寸瀛忺/td>	chloride (Cl-): ≤0.01% sulfate (SO42-): ≤0.02%
鐥曢噺闃崇瀛忺/td>	Fe: ≤ 0.002% N: ≤ 0.005% excess alkali (as NaOH): ≤0.1%
鍌ㄥ瓨娓╁害	15-25鈩傸/td>
InChI	1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI key	WPZFLQRLSGVIAA-UHFFFAOYSA-N

瀹夊叏淇℃伅

璞″舰鍥近/td>
璀︾ず鐢ㄨ锛欬/td>	Warning
鍗遍櫓澹版槑	H302
棰勯槻鎺柦澹版槑	P264 - P270 - P301 + P312 - P501
鍗遍櫓鍒嗙被	Acute Tox. 4 Oral
鍌ㄥ瓨鍒嗙被浠ｇ爜	13 - Non Combustible Solids
WGK	WGK 1
闂偣(F)	Not applicable
闂偣(C)	Not applicable