AV福利免费网站网址，国产精品福利在线观看无码卡一，91精品国产自产精品，国产a黄色视频，国内精品久久国产原创，国产综合这里只有精品，久久精品欧美日韩精品，xxxx福利视频

<b id="yudwy"></b>

^{<noscript id="nlwbc"></noscript>}

貝斯特鉬制品

Best Molybdenum Products

中

PRODUCTS

Best Molybdenum Products

Sodium tungstate

Molecular formula

Na₂WO₄.2H₂O

Properties

white crystal

Specification

Chemical ingredients	AR	First grade	Second grade
Na₂WO₄.2H₂O	99	98	97
Mo	0.001	0.02	--
AS	0.001	0.001	0.001
Cu	0.0005	0.001	0.001
Fe	0.001	0.001	0.005
Si	0.004	0.04	0.04
Water insoluble substance	0.005	0.05	0.05
PH	8.5-9	8.5-9	8.5-9

Uses

Intermediate of tungsten, used in mordant, catalystic pigment, reagent, weight additive, water treatment agent, fitre fight material, phosphato tungstated and boron tungstated

Packing

Net 25kg,metal pail and woven bag , plastic bag lined composite kraft paper bag or 50kg in plastic bag lined metal pail.

[ BACK ]

貝斯特鉬制品

Best Molybdenum Products

日韩一区精品视频在线观看蜜桃,欧美精品一二三区,五月婷婷婷婷在线视频,91精品一区二区在线观看

<b id="yudwy"></b>

<thead id="tibxy"></thead>