六偏磷酸钠（SHMP）
Sodium Hexametaphosphate
分子式：(NaPO3)6
Molecular formula：(NaPO3)6
分子量：611.82
Molecular weight：611.82
特性：白色粉末，比重2.484（20℃），熔点616℃(分解)。易溶于水，不溶于有机溶液，吸湿性强，在空气中逐渐吸水而呈粘胶状，可与Ca,Ba,Mg,Cu,Fe等金属离子形成可溶性螯合物，是一种优良的水质处理剂。
Physical and Chemical property：It is white crystal powder. Specific gravity is 2.484 at 20℃. Melting point is 616℃. Soluble in water easily, but not in organic solvent; Strong hygroscopicity, glue-like while ABSorbing water in the air, combined with metal ions, such as Ca, Ba, Mg, Cu, Fe and so on to form soluble chelates. It is an excellent water treatment agent.
执行标准：工业级HG/T2519-2007；食品级HG/T2519-2007
Executive standard：tech grade HG/T2519-2007；food grade HG/T2519-2007
技术指标：
Technical indexes：
序号S/N 指标名称
Specifications 工业级指标
Index for
tech grade 食品级指标
Index for food grade
1 总磷酸盐(以P2O5计) 质量分数/ %
 total phosphate as P2O5 ≥68.0 ≥68.0
2 非活性磷P2O5质量分数/ %
Inactive as P2O5 ≤7.5 ≤7.5
3 水不溶物质量分数/ %
Insoluble ≤0.04 ≤0.06
4 铁Fe 质量分数/ %
Fe ≤0.03 ≤0.02
5 PH值（10g/L）
PH value 5.8-7.0 5.8-6.5
6 溶解性
Solubility 合格
Qualified ——
7 砷（As）的质量分数/ %
　　　As —— ≤0.0003
8 重金属（以Pb计）的质量分数/ %
Pb —— ≤0.001
9 氟化物（以F计）的质量分数/ %
F —— ≤0.003
10 外观
APPearance 白色粉末
white powder 白色粉末
white powder
用途：工业级主要用于油田、造纸、纺织、印染、石油、化工、皮革、冶金、建材等行业，作软水剂、缓冲剂、浮选剂、分散剂、高温结合剂。
食品级主要用作添加剂、营养剂、品质改良剂、PH值调整剂、金属离子螯合剂、沾合剂、膨胀剂。
Use：For tech grade, mainly used as water conditioner, buffer, floating agent, disperSANt, high temperature bonding agent in the industry of oil field, paper making, textile, printing and dyeing, PETroleum, chemicals, leather, metallurgy, building; For food grade, used as additives, Nutrition, quality improver, PH value adjustment agent, metal ion chelating agent, binder, expansion agent.
包装及贮存：内塑外编袋，两层内袋，每袋净重25kg或50kg，贮于通风干燥处。
Packaging and Storage：Plastic knit bag and two-tier inside. It is stored in ventilated and dry place.
Net weight : 25Kg or 50 Kg.

工业磷酸
Industrial phosphoric acid
分子式：H3PO4
Molecular formula：H3PO4
分子量：97.99
Molecular weight：97.99
特 性：无色透明的粘稠状液体，无臭，味很酸，比重1.70，相对密度1.834，熔点42.35℃，溶于水并放热，加热至300℃便失水成焦磷酸和偏磷酸，长时间受冷即生成结晶，有腐蚀性，易吸湿，密封保存。
Physical and Chemical property：It is the colorless, transPARent and syrupy liquid; odorless, taste sour. Specific gravity is 1.70, and the relative density is 1.834, melting point is 42.35℃. Soluble in water and release heat. It loses water when heat to 300℃ and converts to pyrophosphoric acid and metaphosphoric acid. It will become crystal after cooLED for a long time; causticity, Moisture - prone, kept in sealed container.
执行标准：工业级GB/T2091-2008；食品级GB3149-2004
Executive standard：tech grade GB/T2091-2008 ；food grade GB3149-2004
技术指标：
Technical indexes：
序号S/N
指标名称
Specifications 工业级指标
Index for tech grade 食品级指标
Index for food grade
1 磷酸（H3PO4），ω/%
Phosphoric acid（H3PO4） ≥85 75.0～86.0
2 氯化物（以CL计），ω/%
Chloride（as CL） ≤0.0005 ——
3 硫酸盐（以SO4计），ω/ %
Sulfate（as SO4） ≤0.003 ——
4 铁（Fe），ω/ %
Ferrum（as Fe） ≤0.002 ——
5 砷(As)，ω%
Arsenic(as As) ≤0.0001 ≤0.00005
6 重金属（以Pb计），ω/ %
Heavy metal（as Pb） ≤0.001 ≤0.0005
7 色度/黑曾
Chroma ≤20 ——
8 氟化物（以F计）ω/ %
fluoride —— ≤0.001
9 易氧化物（以H3PO3计），ω/ %
Easy oxidizable organic material —— ≤0.012
用途：工业级主要用于生产各种磷酸盐，金属表面磷化处理，配制电解抛光液和化学抛光液，并用作催化剂、干燥剂及清洗液，用于生产磷酸耐火泥，无机粘结剂，涂料工业用作金属防锈漆；食品级可用作酸味剂和酵母的营养剂，可用于调味料、罐头、清凉饮料的酸味剂，用于酿酒时的酵母营养源、防止杂菌繁殖。
Use：For tech grade, mainly used in producing varieties of phosphate, metal surface phosphate treatment, the preparation of electrolytic and chemical polishing liquid, and used as a catalyst, drying agent and cleaning fluid; used in producing phosphoric acid refractory clay, inorganic adhesives; used as a metal antirust paint in coatings industry. For food grade, available for sourness agent and yeast nutrient, can be used for seasoning, canned food, soft drinks of sour agent, used in the brewing asyeast nutrient source, preventing multiplication of mixed bacteria.

包装及贮存：聚乙烯塑料桶装，净重35kg，桶口必须加内盖和外盖严密封闭。
Packaging and Storage：Stored in polyethylene plastic drum, and sealed storing by Inside cover and outside cover.
Net weight : 35Kg.